i also once sold my N900 to buy a fancy Android phone to enjoy multi-core processors but believe me after using Android for about 4 months i bought a N900 again.

Android phones have nice hardware but Android itself is just not for me. you can't even do N900 like multi-tasking on a multi-core cpu and with 1 gig of ram. apps and games restart again if you put them in background and have plans to resume them later at the same place you paused them.