Like an ex-partner suddenly hitting the gym and prompting some relationship regrets (yes, we’re shallow here in the tech world), Symbian Foundation have caught our eye with a new demo video of what they’re suggesting might be a nifty future UI for the platform.  Part of Lee Williams’ keynote at SEE 2009 last month, the video shows a device with lashings of augmented reality and location-based services, together with social networking integration.

Video demo after the cut

In the demo, there’s a combined “event” stream from Facebook accessed from the homescreen, controlled by gestures; an invitation links into messaging, with Exchange-style meeting responses, and is automatically added to the device’s calendar.  While on the move, meanwhile, an augmented-reality view of the street is overlaid with specific directions to the event complete with messages from other users (”the back gate is open”).

Unfortunately, like discovering after a make-up date that your ex is still wedded to their old, destructive ways, Symbian Foundation aren’t doing the sensible thing and le