Also, everyone here has been so excited over tunderbolt they forgot to realize that we are also going to see USB 3.0 in these laptops due to sandy bridge. Thank god! No more 3 hours of wait time to transfer over information from laptop to a portable via usb.
Sorry to disappoint you again, but sandy bridge does not offer USB 3.0, its still old USB 2.0
Anyway, if Thunderbolt is Light Peak, you won't be needing any USB 3.0. There will surely be Light Peak to USB 3.0 adapters and similar.