Spectacularly Cheap?
"If you think £450 is spectacularly cheap for a large tablet"
If you think £450 is spectacularly cheap for a large tablet then you have too much spare cash and should give it all to me :)
Dixons has removed pricing and pre-order information from the Motorola Xoom page on its PC World website. Earlier today, the retailer said on the page that it would charge £450 for the 10.1in Android tablet, and invited interested punters to "pre-order today". Motorola Xoom at Dixons Then... Within hours, the offer had …
You do understand that Wifi and 3G are different technologies don't you?
Adding 3G will require adding a 3G chipset and all the necessary gubbins like somewhere to put the SIM, a reasonable amount of additional wiring and a suitable antenna.
On top of that there's the additional development costs and the additional approvals.
Being able to buy a chipset for a few pounds does not mean it only costs a few pounds to add it to your device, not by a long way.