I allowed MobileMe to convert to iCloud. No issues.
Before I did anything, I sync'd my iPhone and iPad to iCal and Contacts.
I decided to only use my converted MobileMe account for MobileMe mail and notes. All my calendar, contacts, apps, services will go through my iTunes iCloud account. From here on, MobileMe means converted MobileMe account to iCloud.
Contacts were easy to migrate. I just deleted my MobileMe account from my iPhone and iPad and deleted...