Blackberry

[ChirpyKez]

What are these things! Can someone give me a rough decription? Do the take a regular mobile sim? Are they just like a smart-phone? It seems more and more people have them but I don't get what the difference is between them and a decent mobile. If they are worth buying what what would be a good one to go for? Thanks!

[ChirpyKez]

Thanks....still not sure about them though!