BlackBerry Blackout Across U.S., Canada

I’m curious, why exactly any Blackberry data pass through RIM’s servers at all? Data only needs to go from your device to your carrier, then out to the mail server actually hosting the mailbox in question.

Given the repeated outages as of late, why aren’t RIM users up in arms? Swap out for a Palm or Windows Mobile device, and skip one of the middlemen.