Supermodel v0.2a has been available for a couple of months - it now has sound, and support for game controllers! Website has moved here: http://www.supermodel3.com
Discovered an obscure secret with a high geek-factor on the Hoth escape level. Just like in the wampa attack sub-plot that was eventually scrapped from the film, the room containing two wampas has a warning sign stuck on the door (a deleted scene shows Threepio removing this sign). In the game, you can actually shoot this sign off the door - presumably you get some bonus, or maybe fewer enemies later on, for doing this.
I'm still a miserable failure at the Yavin stage, there must be a knack to it I'm not getting. :-(