Just spotted this piece of news @ [H]ardOCP.

ASUS seems to inadvertently be debuting Hyper Threading Technology. What do I mean? Well, looking at the latest BIOS updates for Intel based motherboards on the ASUS website you can see that the P4T533 (P4T533-C also) now has support for Hyper Threading through the latest BIOS update v.1005. That would mean that if you own an ASUS P4T5333, and possibly other boards with Intel chipsets, you don?t have to wait fot the official launch of Hyper Thread enabled boards?because you already own one.