If you haven't heard yet, HTC has been developing a new flavor of its own flavor
of another flavor of Android called Espresso.
Espresso is an interface built on top of HTC's flagship Sense UI and is expected to make its first appearance in the wild on the upcoming T-Mobile myTouch Slide. We covered the phone and the UI when both of them leaked online.
Espresso Build Leaked Online
Yesterday, GamerCore from AndroidAndMe.com got his hands on an Espresso build leaked by Binary100100 from xda-forums and loaded it onto his G1 after zachattack052 and Domenuk ported it to the myTouch/G1.