Thank you for reporting this bug. Fixing this will require a partial re-implementation of the live tile, so it may be fixed in the next few updates or in 1.6, as this is, as I previously stated, a major change to my existing live tile and app code. Specifically, I would have to first implement a 'primary location' feature in non-GPS mode (which is planned in the next minor update), and would then have to code my live tile to support such a feature.