Will there ever be a thunderbolt hub that is as simple as a USB hub? I mean like as simple as connecting it to your thunderbolt hub and having 2 thunderbolt connections. Considering I have he 2011 iMac 21.5" with 1 thunderbolt connection. I've seen other hubs on the market with the extra connections on it like USB and FireWire. I guess I should have gone with the 27" model.... Any thoughts or is this even possible? Thanks.