after watching a few more of the videos on the HD, i really must say that the TP is a bit more user friendly.  the hardware keyboard and the nav-con of the TP make it really useful and for some a better phone (for their usage) than the HD.  check out some of the other vids by pocketnow on youtube for the HD & TP....they are very interesting.
one thing i notice is that he is using a GSM version of the TP...which is slower than the sprint CDMA version.  i looked at the screen rotation speed test they did btw the TP and SXP1, my TP was faster in my opinion than his SXP1.  here is that vid: 
http://www.youtube.com/watch?v=bfBLsMl-yoI