Pesterchum for Android 2.1 (and later) devices!
In what is likely the most necessary and useful application ever written, you now have the ability to pester various chums anywhere you go. Keep a chumroll, join memos, set a color, receive notifications when someone pesters you, etc, etc, etc.
If you have any bugs to report, feature requests, or just comments, either post them here or hit the contact developer button from the main screen's menu. I'm sure there are a few things here and there that would be useful to add that I haven't thought of.
Android Market link: https://market.android.com/details?id=com.m85.chumdroid
QR Code for your phone's barcode scanner:
In my mind the project is pretty much done, in the sense that I haven't done much to it in awhile. Feel free to fire bug reports my way and I'll try to work up the motivation to fix them. I can honestly say I'm shocked that this application has 400 550 2500 active installs; I didn't think it'd even be half a tenth that popular.