I'm sure we have many Facebook users here, so I want to let you know that I've just recently released FBabble.
It's a simple facebook chat client in early stages of development, so it may crash occasionaly (but it mostly works for me). I plan on updating it often until it's rock solid and then adding new features.
It is free and has no ads during normal use. However, it has a "Suggestion Box" page you can go into and post suggestions and ideas to the author (me), which displays some ads (hence the need for permissions). Let me know what you think of my solution to keeping the app free, yet unobtrusively ad-supported ! (you can also use the "suggestions box" to do that
