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iPhone, Android, BB: All can send emails. You can argue whether the physical keyboard is better etc. but that's personal preference.
iPhone, Android, BB: All can sync contacts. Not sure why one is better than the other.
iPhone, Android(never used it but I believe?), BB: Can work with Exchange if you use that, calendars seamlessly sync between devices, computers, etc.
All I have ever heard is BB is "better" at it, but no one says *why*.
I bought 2 of the 60w equivalents and they look pretty good. I'm not a fan of the bluish ones, but the yellowish ones looks great. I like that they rate it to a comparable incandescent. Most LEDs seem to give you a lumens output value but for most people, that requires some research into what that is in equivalent incandescent bulb.