I haven't seen any devices using 3.0. They may exist, but it's so new that it'll probably take a year to filter down and/or be worth the extra cost. I don't even know if any PCs use 3.0 yet.
So I think you'll be OK even when 3.0 does come out. The devices will be backward-compatible, so it's not like you'll be forced to use old stuff.
So I think you'll be OK even when 3.0 does come out. The devices will be backward-compatible, so it's not like you'll be forced to use old stuff.