I'm in, well, maybe
I don't know if I'll be able to code a it this weekend, or at all. Just in case: I'm in.
I will use plain C++ with SFML and one of my frameworks: potato-framework or Fluffy (both still in development, for years, hum). For audio and sound it will be Audacity and sfxr. Gimp/toshop and Inkscape/illustrator for graphic stuff.
Hope to be in with you guys!