I just stumbled on this deal on the Argos site yesterday when I was looking for some mundane household goods. Even without the special offer, it still seems a reasonably good price at £229 given that it includes Win7.
It's just my bad luck that I bought an Acer Aspire One D250 (N270 with XP) for £189 (including carry case) from Ebuyer just a few weeks ago. I could have been seriously tempted by this MSI Wind.
Obviously don't know if the Argos deal was on back then, but I did look around at what was on offer (e.g. Saverstore, DABS, PCWorld etc.) and the Acer from Ebuyer seemed a pretty good deal.
Didn't really think of checking out Argos - it's not somewhere that I think of for buying PC stuff.