Not so odd really; Next have a huge catalogue that includes TV, audio & HiFi, computing, kitchen & domestic appliances, gaming etc.. etc... They already offer the Archos 8" and 9" tablets; I'd guess that this is just some (not so) bright spark saying 'hey, let's do an own-brand 10" tablet - we just buy one in and slap our name on it...'
Shame they didn't test it first
Pete