HTC just filed for trademark status on the term “HTC Scribe”. And that’s just about all the information we have on HTC’s entry into the tablet game. In the trademark, under “Goods and Services”, HTC says it is a “Handheld wireless device, namely, a tablet computer”.
That’s about the closest we can come to any sort of confirmation on a tablet device. If you want to see the trademark application for yourself, head over to the USPTO.gov.