If you use TweetDeck on your Mac or Windows machine to manage your Twitter account, and you have an iPhone, you will love this little application. It is the first Twitter app that I have found for the iPhone that allows me to manage groups. (Yes, I did try TweetStack, but it kept crashing on me.) It will even sync groups between your desktop and your iPhone, provided that you sign up for a free online account. Even the application is free. The only reason I didn’t give it a five-star rating is that it is still a little buggy. I’m sure the developers will get this worked out shortly.