Apparently this much needed addition of auto rotate-y goodness for your T-Mobile G1 based on screen aspect is inbuilt to the new Android SDK, but has been kept under lock and key until they deem fit to release it.

However, if you can’t wait for the powers that be to grant it to you, DroidSans has a auto rotate/G1 tweaks and tips guide explaining how to get it up and running.

Be warned, the process is a ‘hot’ on the Nando’s scale of difficulty, so if you aren’t used to poking around in your G1’s guts quite yet, take your time and stay safe!

It isn’t like the phone doesn’t have it, the compass mode on the street view (US-only cities, naturally) shows just how sensitive a sensor the G1 is packing, it just decided not to take advantage of it! Forcing us to open and shut the keyboard to go into landscape was annoying, and the manual selection for aspect just silly.

Well, all that’s about to change with a new app which makes the G1 able to be auto-rotated at a flick of the wrist. Hooray! Watch the vid below to see it in action!