Jeff Garzik wrote:

The Treacherous Platform Module includes an RNG.

Someone (hi Jesse?) should implement support for TPM_GetRandom.

All the specs are public, and the hardware is already in users' hands.

I will not pretend to understand everything mentioned, but having web 
searched on "TPM RNG" I came across this:

http://www.mail-archive.com/cryptography@metzdowd.com/msg06299.html

which may either encourage or discourage depending on one's point of view.

rick jones