I just want to throw it out there that I think Chrome 20 is going to be able to fully emulate Android the way that Bluestacks is already doing. Chrome already has tab syncing and page syncing so the obvious next step is full syncing.
It looks to me like they are going to announce that they are bringing Android to the Chrome browser since Android is already running on x86 and it allows Google to unify the two. Android on Chrome is going to allow users to see what screen they are on their phone and allow them to remote into their phone from the browser.
Search your feelings. you know these things to be true!