It seems the folks over at Telsa Motors have been busy. They just announced details of the new v1.5 transmission that will be going into the Tesla Roadster starting around production #41. As I'm the owner of #97, I should benefit from this change. Don't feel bad for the first forty, they'll get a free retrofit.
You can read a good overview from Wired here or get all the gory details from the Tesla CTO Straubel here.
Number 97 is scheduled to be built in October 0f 2008 which probably means delivery in January 2009. If I'm lucky I might just get it from Christmas this year.