Offer valid until 31st August 2010
This is for the new version of the MiFi router (E585) and is usually £49.99 without any credit.
It is also possible to get £12 cashback (TopCashback and Quidco), making this only £28 (I bought one and it has tracked).
I've checked eBay and unlocked versions of this MiFi are going for around £80 -£90, but a quick surf turned up sites offering unlock codes and software for just over £5 - so I think this is a fantastic offer - so good that I'm sure there must be a catch, but I've not spotted it yet :)
Stating the obvious, but this is fantastic for anyone with a WiFi only iPad, iPod Touch etc.