I'm going to try to release an alpha update every Friday. Expect this post to be updated once I actually upload something in a few hours. Until then, salivate over these fantastic features:
Clipping: Pretty much done, but no morph ball
Editable rooms: You have to use notepad and run it through a translator, but you CAN build rooms.
Precursor to doors: They're in, but they don't do anything.
Simple phyiscs: Jumping, spin jumping, blah blah.
For two weeks work, I'd say it's coming along well. More later.