This feature of MobileMe is unusable for me as it just stops working randomly. Meaning, my data will just stop syncing to the MobileMe iDisk site. The iDisk on my MBP is always up to date, but the site online will not update. I've talked to tech support and the 'fix' is time consuming and hassle and only 'fixes' until it happens again in a month or whenever. (btw, the fix is to delete everything from iDisk, stop syncing, start syncing, then load everything back onto iDisk) I love the feature, but if it doesn't ALWAYS work, then I can't depend on it and therefore cannot use it. I'm a professor and doctoral student, I need my info on iDisk and love the way it SHOULD sync with my macbook pro. Btw, we all know the service is overpriced as it is (my opinion). It's not worth it for free if it doesn't work. Rant over.