Buxoid is a finance app for Google's Android OS. It interfaces with buxfer.com's API to deliver up to date information on balances, transactions, and expenses for all of your accounts. In addition to viewing information, you can add in temporary transactions like uncleared checks to properly adjust your available balance.
Here are some screens:
The app is going to be released soon. I have some outstanding questions to the people at buxfer regarding a couple of API calls. As soon as those questions are addressed, I'll post a release date.