My mum's 12 months contract is up and she's got a Nokia 3310.
She has been offered a free Nokia 3510 if she continues with the contract with Orange. Is it worth it, what features does this have over the 3310 and does it definitely have a colour screen or is that only some models? Thanks in advance.

taken from nokia.co.uk

3510

Its the 3510i that has the colour display.

The phone aint bad. Its got nearly everything my 6510 has got. A friend of mine has got it. Its got loads of advantages over the 3310. Wap if u use it (though 99% of us don't) u can save 160 odd txt messages on da phone rather than relying on the10-20 off the sim card. games are better, polyphonic ringtones etc etc
Def try and get a 3510i so u get a colour screen. otherwise try and get a 6xxx new series phone.

Or Sony Ericsson T68i - Has far more features than 3510i and is now being offered freee by most networks as well - plus its smaller, lighter and better battery.