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Scheduler, camera, music player – oh, and a telephone. Mobile phones increasingly are every gadget possible rolled into one. The next frontier, reports Reuters, is GPS navigation.

Finnish handset manufacturer Nokia already sells a mobile phone with an integrated navigation device (for a hefty 700 euros – about $950), but “other top vendors are expected to follow shortly, hoping to make 2007 the breakthrough year for cell phone navigation,” Reuters reports. “Nokia, which bought into the navigation industry last year with the acquisition of German firm Gate5, rolled out a free Nokia Maps service in February, giving away maps and routing data while charging consumers for a turn-by-turn navigation service.”