Re: Quad core
Actually, the article states "1.5GHz dual-core processor" so it isn't quad core. However, the general idea of the multiple cores is that you can have more processing power AVAILABLE but without cranking up the power. For example, the latest multi-core arm design has five cores. One, low power core is running most of the time for mundane tasks and uses little-to-no power. The other four cores only kick-in when more grunt is required and then shut back down again with ARM quoting power savings of 30% or more.
So multi-core IS about getting back to a practical battery life - even if it won't be marketed as such because, like it or not, amazing battery life doesn't sell to Joe Public.