First, I'd like to say thanks for a great app. The Chess.com android application is a great tool, and I use it more often than probably any other application on my phone. Keep up the good work!
My only minor annoyance: when I go to "Play Online", the app does not remember my previous selection. It often sends me to "Challenges", which is often a blank list, rather then sending me to "Current Games". It's not a big deal, but when I try and check my current games upwards of ten times a day, it gets a little tiresome to have to click over all the time. I'm on a Motorola Droid, with Android v2.2.2.