I'd be rather curious to see how advanced the Android hackers have gotten. Something I'd really like to see would be the ability to run apps outside the standard Android framework/jail, so that those with a dev phone straight from Google could, for instance, run an SSH server, or run X11 apps written in C/Python/etc.
I have a Freerunner, and I like being able to write my apps in Python/Gtk, and while the Android port for it looks really interesting (once Android finally gets a real on-screen keyboard that is), I don't want to give up my ability to write in a language that isn't Java.
Edit: and the Dev1 case looks a lot better than the standard G1, too. ;)