Since it's been a whole 28 minutes since midnight and Alex oniugnip still hasn't said anything, I'm once again left with no choice but to brag on his behalf about the Google Plugin for Eclipse, which he's been working on for a while, and which you can now go get!
If you don't care about Eclipse a whole lot (which, to be honest, describes me), note that this comes as part of a larger announcement about the shiny new Java support on App Engine. And if you don't care about that, note that this also means that any language that runs on the JVM can, at least in theory, run on App Engine now. In fact, Alex has a sudoku solver written in Scala that's running on App Engine at this very moment. Now that's awesome!