Right guys, be gentle, a newbie here but i'm going to throw a big spanner into the works here in terms of how to get a sim free N900 direct from Nokia for the princely sum of: £310.61 (also works for anyother Nokia phones but as this a N900 thread)

You have until the 21st October for this to work.

first go to http://www.topcashback.co.uk/ and create an account, they're a bit like quidco but no fees, bascically they have agreements in place with merchants where a % of your purchase is passed on to you in the form of cashback, this is usually paid 2-3 months after your purchase has been verified and will go either into your bank account or paypal depending on what you've entered as your preferred payment option.

Ok, once logged in and signed up, click on search in the merchants and you will see Nokia, it show's 10% off, if you're signed in and click the visit merchant button you will then open a new window that will take you to the Nokia UK website, add the N900 (or whichever phone you wish to purchase in the cart and checkout).

Once you have checked out you will see that the sum being asked for is £499 inc free delivery.

Ok, scroll to the "Enter Promotion Discount" box and enter: AFFUK15

This will reduce £74.85 off the phone should now come up at a rate of £424.15

Again go to the "Enter Promotion Discount" box and enter: SOCUK15

This will reduce £63.62 off the phone should now come up at a rate of £360.53.

Please note that topcashback on the discount codes & deals tab of the nokia retail page says:
You can use both codes AFFUK15 and SOCUK15 at the same time.

I have just tried it now and it does work!

Ok so the phone is now down to £360.51 which is pretty damn good, well because you used Topcashback you will get 10% off the price, no not the final price with all the discounts but in fact the starting price which is £499 so you will get cash in your account or paypal for another £49.90 meaning your N900 will have cost you £310.61.

I believe the Soc Media discount code is going to expire on the 21st of October.

I have received confirmation of my order from Nokia by Email and Topcashback has also tracked my order.

Hope this helps some of you.

Any questions, give me a shout.

Hass