I wanted to get a new external drive for the macbook pro. for time machine/backups etc. Since thunderbolt supported enclosures are not out yet, I wanted to know if it is possible that if I got an enclosure with eSata, that it would be technically possible to have an eSata to thunderbolt adapter in the future. Is it likely that such a thing could happen? would it cost a fortune that I won't probably buy it anyways? If not, I am not going to fork over the extra money for an eSata port on the enclosure and just settle for firewire. p.s. is it technically possible to have a usb3 to thunderbolt?