UPDATE 2/20/2011:

We've given the developers of twidroyd and UberSocial for Blackberry (formerly UberTwitter) access to the Twitter API again. Our initial review indicates that steps have been taken to remedy the violations for these applications.

When the developer updates twidroyd and Ubersocial, you'll be able to download their updates to access Tweets again on these applications.

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Want to use Twitter on your phone? Try one of the following apps:

Twitter for Blackberry | Twitter for iPhone | Twitter for Android

2/18/2011

Regardless of how you access Twitter, we are dedicated to making Twitter better, faster and more reliable for you. As part of this effort, we ask applications that work with Twitter to abide by a simple set of rules that we believe are in the interests of our users, and the health and vitality of the Twitter platform as a whole. We often take actions to enforce these rules.

We have suspended UberTwitter and twidroyd for violating our policies.

Every day, we suspend hundreds of applications that are in violation of our policies. Generally, these apps are used by a small number of users. We are taking the unusual step of sharing this with you because today’s suspension may affect a larger number of users.

We are committed to helping you continue to use Twitter during the disruption of these applications. You can download Twitter for Blackberry, Twitter for Android and other official Twitter apps here. You can also try our mobile web site or apps from other third-party developers.