"If I use different accounts for iTunes and MobileMe, can I merge them into a single account and use it with iCloud?

No. You cannot merge two accounts into one. However, you will be able to move your MobileMe account (yourname@me.com) to iCloud and, if you choose, you can continue to use a different iTunes account for store purchases and iTunes in the Cloud."

ok. vorrà dire che manterrò l'account me.com (coi suoi 20gb in omaggio in più) fino a giugno 2012, poi vedremo..