Hyper-Threading has security flaws?

I stumbled across this link just now, I cant vouch for the accuracy of the link but thought it would be best to give you guys a heads up (especially anyone who uses them in servers) and see what happens as a consequence of the follow up presentation (could be entirely bogus!).
http://www.daemonology.net/hyperthreading-considered-harmful/

http://www.theinquirer.net/?article=23215

which links:

http://kerneltrap.org/node/5103


As stated there not many people are losing sleep. Kinda weird the guy was like "THERES A HUG FLAW AND I FOUND IT. but i wont tell you what it is unless you attend my presentation."

Yeah i read about it. You gotta be an extremely skilled hardware-level programmer to take advantage of it. Plus it requires extensive acces to windows and such so installing it without notice of the system's owner is quite impossible.

It won't affect dual cores either...so i think the guy was in need of attention or something.