If you’re an Android Developer or even a random Android enthusiast who picked up the unlocked Android Dev Phone 1 (ADP1) then you’re in luck… you now have access to download Android 1.6 aka Donut! In a tweet by Android Team Member JBQ we are linked to not only the files necessary to do so, but a “How-To” on flashing the phone with the new build. As the page mentions, it will only work on ADP1:

I’ll let you crazy kids go ahead and get started… keep the comments on topic please.

UPDATE: Also available for Google ION!