Dell announced the new Dell Inspiron Mini 12 end of October. The 12.1 inch (biggest netbook screen with 1280x800px resolution) Atom powered netbook is now shipping from the Dell shop.
Not only that, you can choose your Dell Mini 9 and Dell Mini 12 in 9 different designs including the perfect girl gift color pink (More Pink Gadget Gifts if you need them).

The Dell Mini 12 starts at $549, which gets you a Intel Atom Processor Z520, 1GB RAM, 40GB HDD, only 3 hours battery life and Windows Vista Home Basic.
For a top of the line Pink Dell Mini 12 with specifications that include Intel Atom Processor Z530, 1GB RAM, 80GB HDD, and 6-cell Battery, Pink color option ($25 extra) and Windows Vista Home Basic, you end up paying $674.
More details on Dell.