RIM is the only one with a clue
It's not about the phone, it's about the data on it.
At minima your contacts, often also your mail, and for advanced users also agendas and notes.
But data doesn't live in isolation, it needs to be constantly available and up to date on multiple devices: my phone, my tablet, my laptop, and over the web when all the others fail.
To date I have three choices: BES/BISx (not plain BIS, which is a waste of time), ActiveSync, and local cable/bluetooth syncing.
The only one that always works, no matter how bad your signal is, ... BISx/BES.
Low level signaling still works when you have GSM-only (SMS), changes can be buffered (try filing a mail on your iPhone when you have no network), and the protocol is optimized (keep alive over HTTPS on poor EDGE/GPRS to sync state just isn't).
So as much as the iPhone is neat, and Samung's Galaxy really powerful, and Nokia... None of the other phones do what is most important: make sure I have my data up to date over the air and with me at all times.
RIM is the only game in town, the rest is just for show.
Never mind the whole debate about how virtual keyboards are cute, but will never allow you to be as efficient as a RIM physical keyboard (you're on a bumpy/crowded bus, with your grocery/travel bags in one hand, holding on to the railing, phone in the other hand: I'd still be typing this with ease).
The only thing I can hold against RIM, and here I agree with most of you that RIM is dead: unless they share/open/license BES/OTA sync with other platforms, consumers will go for the shiny new phone from vendor x that is only really a phone, and the real smartphone technology will die.