Thanks to wumtasic1 on mse for this one;
My best mates a manager at Currys and he's saying this Sat Nav goes on sale tomorrow for 97p.
Its old stock and will still be advertised at £69.99 (Staff won't change it as they want it for themselves).
You'll have to take it to the till and ask for a price enquiry.
If I was you I'd phone up the store and ask about it first, I also wouldn't make a trip out for it just incase your local store doesn't have it in stock.