I spent a bunch of time last weekend writing a Slide Rule app. Today I'm in the middle of releasing that to the Android Market.
I couldn't sleep last night, so one other thing I did was to update SwiFTP so that it works in full-screen for my Nook Color. I sent an e-mail to the original developer and now have write access to that project. I submitted my updates for that today. Might be interesting to support that and work on issues that people have logged against it.