http://www.reghardware.co.uk/2009/11/14/review_netbook_acer_aspire_one_d250_android/

   Switch the machine on - it's an Aspire One 10in D250 netbook, almost
   exactly like the one we reviewed here - and alongside the regular
   invitation to enter the Bios setup screen by pressing F2, you have the
   chance "to enter Windows OS" by pressing F9.

   You have to be quick, though. If you're too slow, or you keep your mitts
   off the keyboard, the familiar Google 'droid appears, cheekily peering up
   at you from the bottom right corner of the screen. Within seconds - 18.9,
   to be precise - you're facing the Android UI.

There are some cavils in the article about the Android setup, 

   Now, don't get us wrong, we like Android. The problem is that here it's
   being used to a fraction of its full potential. When Acer announced this
   machine, we wondered if we could remove Windows altogether and just run
   the Google OS. As it stands, even if that's possible - you'd have to
   tinker with the HDD's partitions, but we think it's doable - you'd leave
   yourself with a very limited computing experience. You'd be better off
   installing Ubuntu or Moblin instead.

-- 
You have had a long-term stimulation relative to business.