Stuck on the Matrix object right now, and it's not pretty. There are strange bugs that I can't pinpoint, such as that right now double-matrices can compile, but int-matrices can't. It's the same code--just templated. Grrr.
Current score: ~40 objects thoroughly unit tested, over the last 3 days. Extrapolating, that means that after 14 days I'll have 187 done. There are 446 total objects, and 48% of that is 214. I'm going to be working solid during this time.