Well before I bought it I did look at the battery availability and price of the more powerful one. There are plenty about if you do the normal searches. Once decided I wanted a Netbook I started reading up on them from any "review" source I could find including c.net, PC Pro and many others. I know enough to know the reputable review sources. I never saw a bad word on the Atom but there was the odd "could be more powerful" comment. Having said that I find it in the U10 to be nearly as fast as my T7500/2.2 CPU(?) Tecra A9. If you haven't already done it and you are thinking of buying one there are a huge amount of reviews at Argos - only thing to remember is that they attribute reviews to the specific colours. As a matter of interest they sent c.net and presumably others review U10s and the c.net one was in white and they said they liked it. It's like the Aspire One looked best in blue.