I know much of this has been talked about, but I just saw it on an actual GM site:
http://www.gminsidenews.com/index.ph..._Product_Guide
2007
Hummer H3: The H3 will get a 3.7L I-5.
2008
Hummer H3T: Remember the H3T concept from a few years ago? That's becoming a reality. The truck will be a four-door vehicle with a truck bed.
Hummer H4: The H4 will be Hummer?s competitor for the Jeep Wrangler. It will be based on the GMT-355 platform and will have a removable top and doors. It will also be the cheapest vehicle in the Hummer line-up, starting in the mid $20,000?s. It may arrive in 2008.