I'm migrating from a late 2010 Air to a current Air. Which means no ethernet ports and no firewire or thunderbolt on the older one. Is wifi my only option? And are the rumors true that this could take 32 to 192 hours? (Those are figures I've seen from other people.) I have 128gb [ETA: sorry, 256gb] drives and I'm supposed to get 25mbits/sec cable internet speed, but it's de facto 7 over wifi. I saw one site recommend setting up a dedicated wireless network between the two computers, but I don't know if that will speed things up or just safeguard against hiccups. I also hear there's a USB to ethernet adapter. If it's really going to take more than a day to migrate, maybe it's worth getting it? Any other advice? Experience with how long it will take? Thanks.