Feature request: mark visited and captured portals
Ingress needs some simple indicator that a portal has been visited, and that a portal has been captured. Pogo does this neatly with a ring around a pokestop if you haven't visited. A light ring on the ground around a portal would be suitable. It would be slightly more complicated with Ingress since there would need to be two indications, but it would be simple enough to have two rings. If you've just visited one ring disappears, if you've visited and captured then both disappear.
To me this should be a basic feature of the game, and I was surprised that it wasn't released with Prime. But as it wasn't, I thought it would surely be released once the major Prime bugs were resolved. Now there have been two major new features, portal scanning and dronenet, both of which are interesting additions to the game. But isn't it time this basic feature is implemented?