Macles (source) has just got hold of some official press photos and purported specifications of Acer's upcoming AMD-powered Aspire One 521 netbook;
Chome-plated Acer Aspire One logo on the lid of AO521 - Nice accent, I think.
With AO521, for the first time, Acer Aspire One will be powered by an AMD processor; 1.2GHz AMD V105 processor to be exact. The chip will then be paired with ATI Mobility Radeon HD 4225 graphics, and AMD's M880G chipset for improved performance.
It supports UVD2 and Acer didn't forget to add an HDMI port.
Acer rates the battery at ~7 hours. No other interesting new features except for optional Bluetooth 3.0+HS support. Included in the package will be a new compact and light power adapter, with interchangeable plugs, called MiniGo. I have no specific details on price and availability.
Again, please stay tuned for updates.