There are some good pictures that show the new tablet user interface over on the Android Market as well this video embedded below. (blog.the-ebook-reader.com)
HTC told us that it'd put a lot of time and effort into converting HTC Sense into a viable tablet user interface and that it didn't want to have to re-do all this work for Honeycomb. (pocket-lint.com)
Either way, we liked HTC's Sense for tablets user interface, which added some nice graphics for the weather and polished up the entire user interface overall. (bgr.com)