There was a lot of fuss recently raised over the idea that Twitter was going to try and trademark “Tweet”, giving rise to a lot rumination over how this would affect all those developers out there that had used the word Tweet as part of their application. Well everyone can rest easy because chances are slim to zip that Twitter will ever see daylight on the idea.
In fact as Sam Johnston found out not only had Twitter tried to trademark the word before Biz even brought up the subject but they were turned down the same day. This is according to USPTO records (#77715815) which showed they had applied for the trademark on April 16, 2009
Sorry about your luck there Twitter but I am sure more than a few developers are breathing a sigh of relief as they break out the champagne.