Is this the place to ask about mobile phones?

[RichB]

I need to replace my old Nokia 8850 phone and suppose I will get one of these modern new-fangled e-mail, windows, camera, MP3 player... mobile phones. But doing my research on the interweb I'm even more confused. So can I ask a daft question please? In practice what's the difference between 2.5G and 3G? Rich...

p.s. what about the Treo 750, QTEK9100 or an HTC P3300???

[RichB]

Thanks Chris, I may get back in a day or two with a supplementary question