I decided to finish up a "Learn Android" project I started a year or so ago. It's basically just an Android version of the Clan Lord Informer. It pulls from an XML file periodically (sorry about your battery, I'm lazy!) and shows the current players and latest announcements. It can run in the background and notify you when your friends log in, and you can also set up groups and it will notify you when an entire group is online.
It's got a few more little features, including random crashes that never happen when you've got a damned debugger hooked up. The three clanners that don't have iPhones might appreciate it. If anyone wants to test it out, let me know.