UPDATE: Since Billmonk still has no official API and is down every few days we have created our own service at http://tabsplit.net - including a full featured android client! (http://market.android.com/details?id=net.sphene.tabsplit)
Billdroid is a mobile application for the social money web application billmonk.com. It is still under heavy development and is only published to get early feedback. You can log in and see the list of your contacts and their debt status.
Tags: billmonk , billdroid , bill monk