Nokia and Intel's MeeGo OS is still relatively new, so what  better way to test the water than to allow users to install it on their  phone while keeping their old OS? 
Nokia's N900 has been around for a while now, but  the high-end phone is getting a fresh bout of press attention as Nokia  has announced that the phone will soon be capable of running MeeGo  alongside the already installed Maemo 5. 

