wh smiths kobo thingy is a good alternative in the UK. you can also get a sony reader but I don’t believe that has a storefront built in (so you have to buy your books, download them to the pc, then copy across – on the kindle (and I’d imagine the wh smiths one) you just find a book on the device, hit buy and it’s delivered to you in a few seconds)
+ its awesome for reading text. much better than any tablet, purely due to the screen technology
+ battery life is awesome
– its rubbish for anything else (ie web browsing)
– no light on the screen (you can get covers with lights built in if that’s an issue)
all of those points go for all ‘e readers’. I got a kindle (keyboard wifi) last year, and buying the OH a kindle (cheapy non-touchscreen) this year