Anyone who takes their jobs and family seriously knows that the most essential part of any smartphone is notification management, especially if these notifications are coming from different sources. Three mobile OS out there are that well ahead in the handling of notifications, the rest are so well behind. The best three are RIM, Android and WebOS. The rest, iPhone, Windows Mobile, Symbian, are that behind.
For example. Your friend send you a message on Facebook. With just about every other phone, you won't know if you got a message. You have to open FB by intervals to see if someone posted on your wall or sent you a message.
On the Blackberry, a Facebook post means you get a Facebook notification on your message timeline. You click on that message, and you are opened to Facebook automatically with the contact automatically addressed. It has none of that PC BS ritual where you have to go open Facebook, click on your notifications to see manually if you got any messages. None of that. Your Facebook pals can send you messages on Facebook like they're on SMS. You can reply to them back in an almost interactive manner.
To say that a Blackberry is just for corporate email shows you absolutely don't know how this platfom works. The Blackberry is conceived around the concept of message timeline and notification management, and when I mean message it includes anything from social networking to instant messaging. Even offline instant messages are treated with notifications, so you know your friend just sent you a Yahoo or GTalk message.
Right now I can also sync my Blackberry Contacts to my Facebook contacts. If my Facebook friend has a birthday on his Facebook profile, that's synced into my Blackberry Calendar. My Blackberry contacts not only holds tel, email, but also Facebook, Blackberry Messenger, Gtalk, AIM, Yahoo Messenger and Windows Live information.
The future of mobile OS is built around these concepts:
Unified event timeline
unified Messaging
Unified Contacts
Push notification
Social Networking sync
RIM, Android and WebOS are leading into this. Maemo also have the right clues and working into this direction.