1) needs WiFi
4) syncs with Mail.app
5) well, you record your voice, can play/scrub/delete and syncs to iTunes
6) I have no idea how a modern BlackBerry fares, but synching calendars, contacts and backing up via iCloud is great. The greatest thing imho about the iPhone is how it _doesn't_ lag. Its interface is simply there at your touch. You don't feel like touching the iPhone and _then_ something happens, you feel like touching the function directly. Very little delay.
Mac user since 1987. Running Mac OS X 10.8 Mountain Lion on a MacBook Air 11" & an iMac 27" and whatever's newest for my iPhone 4s, iPad 3 and AppleTV 2.
Apple Certified System Administrator 10.6, Apple Sales Professional 2008-2011, Apple Certified Mac Technician.