Best deal I've found yet for this phone (also known as the T-Mobile G2 Touch). This is for the black phone on T-Mobile. It's just come back into stock on this website today.
FREE T-Mobile G2 Touch Black Mobile Phone
11 Months Half Price Line Rental (Usually £34.25)
Redeemable Cash Back of £188.37
Redeem you cash back in five stages at month 4, 8, 12, 15 and 18
Save £188.37 on this deal
3GB allowance for Web browsing & Emails
Unlimited text messages to use at anytime
Total Contract Cost £428.12 over the 18 Months Contract
Effective monthly price: £23.78
Deal found here (so you can compare with other prices): http://www.rightmobilephone.co.uk/sections/contracts.php?brand=9&phones=921&fee=&provider=&phonecost=&clength=&xnet=&sms=&gifts=&cashback=&email=&submit=Search+Phones&opmins=
Over the contract period, it's works out less than all the other contracts I've seen with less mins/texts and cheaper monthly payments.
My first deal/post, so let me know what you think, but don't be harsh please!
I'm probably gonna get this unless someone finds something better or sees anything wrong with it.