JIPR makes it possible to interactively update code on during development with zero compilation time, and without restarting the applications you're working on.
If you're at Droidcon NYC, come say hello. We have a small "startup demo table" (that's what they called it), and we're mostly just interested in talking to people. We aren't selling you anything, and we aren't trying to hire you.
Or, mail me directly at firstname.lastname@example.org.
Or, join our Google Group!