Didn't achieve much today. Well, that's not exactly true; I added the beginnings of a generic magic variable system for arrays, Z magic, which can be used to reimplement @ISA and friends a lot more cleanly.
Did a tiny bit more writing on the NetThink internals course, and started preparing my notes for the Unicode tutorial at TPC. This is somewhat late, because the deadline was yesterday.
Did most of the perl5-porters summary, but didn't manage to get it all done unfortunately. I'm looking for a volunteer to take over the summaries temporarily while I go through exam hell, so if that could be you, please email me.