On that same spying theme: This just in from slashdot
"Myria at pagetable.com, among others, noticed that Skype reads the machine's BIOS code on startup. This probably would've gone unnoticed if the operation didn't fail on 64-bit windows. From the post: 'It's dumping your system BIOS, which usually includes your motherboard's serial number, and pipes it to the Skype application. I have no idea what they're using it for, or whether they send anything to their servers, but I bet whatever they're doing is no good given their track record... If they hadn't been ignorant of Win64's lack of NTVDM, nobody would've noticed this happening.'"