Highlight, a location-based people discovery app that made a splash at last year's SxSW Interactive in Austin, TX, just released a big 1.5 update that adds photo-sharing and event-creation to its set of features. Sharing snapshots has a whiff of the Color app to it: whenever you take a picture of something, that photo will automatically appear on your friends' Highlight stream as long as they're in the vicinity. You can add captions, tag it with a name of the place, your friends' names, and share them to Facebook or Tw
