Motoblur is an Android UI replacement and push

Push technology

Push technology, or server push, describes a style of Internet-based communication where the request for a given transaction is initiated by the publisher or central server...

-based service focused on social networking developed by Motorola

Motorola

Motorola, Inc. was an American multinational telecommunications company based in Schaumburg, Illinois, which was eventually divided into two independent public companies, Motorola Mobility and Motorola Solutions on January 4, 2011, after losing $4.3 billion from 2007 to 2009...

. It aims at functional similarity to Palm's

Palm, Inc.

Palm, Inc., was a smartphone manufacturer headquartered in Sunnyvale, California, that was responsible for products such as the Pre and Pixi as well as the Treo and Centro smartphones. Previous product lines include the PalmPilot, Palm III, Palm V, Palm VII, Zire and Tungsten. While their older...

 Synergy, including such features as Remote Wipe. Motoblur includes a variety of widgets which combine various social networking portals such as Facebook

Facebook

Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook, Inc. , Facebook has more than 800 million active users. Users must register before using the site, after which they may create a personal profile, add other users as...

, MySpace

MySpace

Myspace is a social networking service owned by Specific Media LLC and pop star Justin Timberlake. Myspace launched in August 2003 and is headquartered in Beverly Hills, California. In August 2011, Myspace had 33.1 million unique U.S. visitors....

, and Twitter

Twitter

Twitter is an online social networking and microblogging service that enables its users to send and read text-based posts of up to 140 characters, informally known as "tweets".Twitter was created in March 2006 by Jack Dorsey and launched that July...

 as well as other services (news or weather reports) all in one place. Feeds and data are regularly pushed to these widgets. Motoblur is currently on Motorola's Atrix 4G

Motorola Atrix 4G

The Motorola Atrix 4G is a high-end Android-based smartphone by Motorola, introduced in CES 2011 on January 5, 2011. It was made available in the first quarter of 2011. It was introduced along with three other products, Motorola Xoom, Motorola Droid Bionic, and Motorola Cliq 2. It uses an NVIDIA...

, CLIQ/DEXT

Motorola CLIQ

The Motorola Cliq is an Android-based mobile phone by Motorola.The Cliq/Dext has 3G/HSDPA ; in the US, it is only compatible with T-Mobile's 3G UMTS network. It also has Wi-Fi ability, a 5-megapixel camera and video recording , a standard 3.5 mm headphone jack, an HTML browser, and a QWERTY keyboard...

, Backflip

Motorola Backflip

The Motorola Backflip is a touchscreen smartphone released to the U.S. for the AT&T Mobility network on March 7, 2010, and for other countries on Telus and Optus networks...

, Devour

Motorola Devour

The Motorola Devour is an Internet and multimedia enabled smartphone designed by Motorola, which runs Google's Android operating system. In the United States, the handset is distributed exclusively by Verizon Wireless. The Devour has a Hearing Aid Compatibility rating of M4/T4...

, Flipout

Motorola Flipout

The Motorola Flipout is a phone made by Motorola and was released in June 2010. Its touchscreen is 2.8 inches in size. It also has a 3.1 Megapixel camera and comes in a wide variety of colors such as Poppy Red, Brilliant Blue, Licorice and Saffron, although in Australia, only Poppy Red, Licorice...

, Charm

Motorola Charm

The Motorola Charm is a smartphone manufactured by Motorola. It was released exclusively to U.S. carrier T-Mobile, and Canadian carrier Telus. The Motorola Charm is the second Motorola Android phone to feature the updated Motoblur UI for Android 2.1....

, Droid Pro

Motorola Droid Pro

The Motorola Droid Pro, also offered by Sprint as the Motorola XPRT, is an Android-based smartphone manufactured by Motorola and released on November 18, 2010, for Verizon Wireless and June 5, 2011, for Sprint...

, Flipside, DEFY

Motorola DEFY

The Motorola Defy is an Android-based smartphone from Motorola. The Defy is marketed as water-resistant, dust-resistant, impact- and scratch-resistant by merit of its port covers and Gorilla Glass screen...

, Bravo, Droid X

Motorola Droid X

The Motorola Droid X is a smartphone manufactured by Motorola Mobility, Inc. that runs the Android 2.3 software; the version of the hardware released in Mexico is called the Motorola Motoroi X. The Droid X has been distributed since July, 2010 by Verizon Wireless in the United States and Iusacell...

, Droid 3, Droid 2

Motorola Droid 2

The Motorola Droid 2 is the fifth phone in Verizon's Droid line. In the U.S., it is available exclusively on Verizon Wireless, and was released August 12, 2010 . It runs the Android operating system by Google, and can run Flash Player 10.1...

, and Motorola Droid Bionic. The version found on the Droid X, Droid Pro, Droid 2 and DEFY is toned down and intended to be less intrusive than previous versions.

When first turned on, first generation Motoblur-based phones force a new user to create a Motoblur account, denying access to the main screen until the account is established. User account information is stored on Motorola's servers for access from web browsers and future phones. The newer devices allow users to defer Blur services for a later registration and has more filtering options and better battery management to optimize the Blur service experience.

In late 2010 Motorola announced that Motoblur will not be their focus for development in the future, as the latest Android builds are making custom skins largely redundant. While the Atrix, Droid 2

Motorola Droid 2

The Motorola Droid 2 is the fifth phone in Verizon's Droid line. In the U.S., it is available exclusively on Verizon Wireless, and was released August 12, 2010 . It runs the Android operating system by Google, and can run Flash Player 10.1...

 and Droid X

Motorola Droid X

The Motorola Droid X is a smartphone manufactured by Motorola Mobility, Inc. that runs the Android 2.3 software; the version of the hardware released in Mexico is called the Motorola Motoroi X. The Droid X has been distributed since July, 2010 by Verizon Wireless in the United States and Iusacell...

 do feature the UI skin, the new Droid RAZR

Droid RAZR

The Motorola Droid RAZR is an Android-based, 4G LTE-capable smartphone designed by Motorola headed for Verizon Wireless in November 2011...

 does not feature Motoblur.

In 2011 PC World

PC World (magazine)

PC World is a global computer magazine published monthly by IDG. It offers advice on various aspects of PCs and related items, the Internet, and other personal-technology products and services...

criticised Motoblur due to the poor performance of the interface.