I bought this app the other day. It let's you log into your Steam account and access your profile, the store, forums, and a few other things. I'm loving it so far. It's nice to be able to just quickly log in and check profile comments and such. I figured with Steam coming to OSX it would be good to pass on the find for others looking for an easy way to keep up with their steam accounts. For a buck it's pretty awesome. Here's the link.