[Xuzz]

Mostly, the required fax machine (much less convenient than emailing a PDF) and the really badly timed phone call from their support staff to confirm me (although, admittedly that is probably my own fault).

(I'm also probably a bad data point with Apple, though: I'm sure they took longer than normal considering I am currently somewhat-visibly contributing to Cydia and some jailbreakst.)

Homestly, though, neither was particularly difficult. (Palm webOS was equally pain-free, fwiw.)