We've talked about a few different Twitter clients designed specifically for Honeycomb in the past, but none have been so anticipated as Tweetcaster HD. The standard Tweetcaster (for phones) has been a long time favorite app of Twitter users because of it's super-rad zip it feature, which gives you the ability to block tweets by keyword, so you can ignore annoying tweets without having to un-follow anyone. Now, along with several other nice features, you can have this functionality on your Honeycomb tablet!