So, I just spoke with John at HTC customer support (866-449-8358, 8am to 8pm ET 7 days a week) and he said that the current Thunderbolts being shipped have either the MSM8260 (?) or MSM8660 (?) chip and that neither of these chips have the necessary DRM security keys built in. Sorry guys. He did say that a later build of the Thunderbolt will have a newer ship that will natively support Netflix.
I didn't think if he was right bout the chips so I called back and spoke with a Wendy there and she looked into which processor the Thunderbolt has and she was fun to talk to (sounds cute). Anyway, after being on hold a few times she said the current processor(s) being used is Qualcomm MSM8655, 1 Ghz, MDM9600. I think maybe this is a combination processor and modem, right (?) but then Wendy seemed to start guessing again, like John, that maybe they were being built with two different processors to try them both out. Regarding the DRM security keys, her boss told her to say that they have not yet received enough training but to check back sometime between the 24th and the end of the month.
Thanks, Robrecht