But good job on the keychain complaint. I hope many more folks conplain about that.
Keychain sync was nice but it had a bad habit of corrupting occasionally. (Preferences sync corrupted within a couple days.) 1Password picks up most of the slack, though. But if they fix the corruption problem then I'd like it back.
As far as iDisk, I'll wait and see how well the document sync service works. It could mostly replace the need for iDisk.
The photo gallery was nice and will be missed (although it always felt like a tech demo and not a part of MobileMe).