Available on an 18month contract direct from Vodafone as an upgrade from recently expiring contract. The Nokia 5800 is the new PDA style touchscreen phone with built in wifi GPS for sat nav, and you can even watch BBC iplayer on it.
No need for cashback, just deal direct with the network operator.
They will also match any deal with dialaphone. I actually negotiated this deal by going on dialaphone and they beat the deal available on dialaphone which only offered 100 mins for the same price.