I was just rang by some Three call center woman and offered 250 minutes and 100 text messages a month (may have been 300 minutes and 150 text, i was half asleep!!, was at least 250 minutes and 100 text though) for £5 a month for life (price on bill, no cashback) with the Nokia 6288 but i managed to get the sony K800i instead, as i said the nokia was rubbish.
It's on an 18 month contract, dunno if i could have asked for 12 month, but i doubt it.
If your a light phone user and don't want the cashback hassle this seems too good to be true. I had problems with cashback deals and with Three not sending bills as well, which voided cashback last time :-/
Don't know if they will let anyone have this deal, but might be worth ringing and finding out!