On my todo list, then is to catch up with what's going on Hadoop, get some of my minor issues checked in and get involved with the fun stuff in Trunk. That includes the 0.23 YARN stuff, but I'm also starting to think there are some data integrity risks that ought be addressed.
First step: building everything. I am particularly excited to see that Hadoop-trunk now requires me to download and build protocol buffers [README]. I shall be updating the relevant wiki pages so that I can remember what to do on the other machines.