The route for the Prologue and Stage 1 of the 2007 TDF have been released. bbc.com has a snappy map that I am linking to here. Here's the prologue:
And here's Stage 1:
A full description of the route is available on bbc.com.
Also found on bbc.com, a completely unrelated story. It seems a farmer in Wiltshire, England received a speeding ticket. He was clocked at 85mph. In a tractor. The farmer, Steve Crossman, said "It's a good tractor, but not that good. It can just about get up to 26mph, but that's downhill, with a following wind and with no trailer on the back. There's no way it could get close to 85mph."
It turns out this was a case of mistaken identity. A happy ending for all, as neither the farmer or the actual speeder will receive a ticket.