File this under "it's not a bug, it's a feature" if true. According to Guyver at the maemo.org forums, some glitch in the OS caused his Nokia N900 to switch into portrait mode for everything, not just dialer and photo apps as previously allowed. We'd love to eliminate the need for two hands to run our favorite chunks of mobile software, but so far we haven't been able to recreate his trick. Try it at home if you'd like by tilting the device to launch the phone app, then sliding up the screen and closing the app. Perhaps the gang at Espoo can turn this into a legit update -- if they're awesome people, of course. Video after the break.