Twitter is taking the world by storm, and because of that we're seeing a flood of third-party apps becoming available. One that recently caught my eye was the Adobe Air-powered TweetBubbles, which isn't designed to be your typical Twitter client. In fact, you can't even post to Twitter with it. How's it useful then?

Twitter limits users to 140 characters, but sometimes that just isn't enough. Some Twitter applications have started to take advantage of third-party services that let users post longer messages, and then in the tweet it will provide a link to the text. In many ways this defeats the purpose of Twitter, but sometimes you just can't fit what you want to say in a mere 140 characters.