Twitter has just sent an email around to its Twidroyd users that it will be suspending the popular Android Twitter app for violating its policies. We’re unsure of the details of exactly what policies Twidroyd violated, but we’ll keep you updated on this story as it develops.

The email from Twitter explains, in vague terms, why it will be suspending Twidroyd:

“…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.”

The email also explains that, although Twitter suspends up to a hundred apps per day that do not comply with their policy, they are informing Twidroyd customers about the suspension because they are aware that a large number of Twitter users will be affected by this interruption.

TechCrunch reports that Twitter suspended Twidroyd for the following reasons:

“These violations include, but aren’t limited to, a privacy issue with private Direct Messages longer than 140 characters, trademark infringement, and changing the content of users’ Tweets in order to make money.”

One thing that will certainly have observers buzzing is the fact that Twidroyd is one of apps owned by UberMedia, a company that many are predicting is headed for a clash with Twitter as it buys up multiple third-party Twitter applications.