Finish tidying up and debugging what already exists.
Finish writing the Nose unit tests and start on some LDTP integration tests.
…including some kind of data gathering extension so people whose tests are failing can easily and reliably report what window manager they’re using and any other details necessary to replicate the bug.
Keybindings to dynamically resize the rows and columns which windows are snapped to.
Keybindings which act as a directional alternative to Alt-Tab.