T-Mobile USA has released their first Android application My Account.  It ties together some very handy data for their G1 subscribers.  Rather than waiting in line or on hold, users can now use the app and get a wealth of account info and more.

If you're a G1 owner, we definitely recommend you give this one a try.  In addition to the account stuff, you'll also have access to guides, battery and storage status, and links to the official T-Mobile forums.

For those who don't have a G1, or decide they can live without the application, you could always dial these numbers for information as well.

• #225# or #BAL# for Account Balance
• #646# or #MIN# for Minute Usage
• #674# or #MSG# for Messages Usage

Source of tip: AndroidAndMe