I agree with taking it in. The Genius guy didn't seem surprised and specifically said 'I've seen this many times, ' when he told my options. Maybe he was just BS'ing me, as he could tell I wasn't really excited about a wipe and a fresh install - but he told me that fixes the problem 'in most of the cases he's seen.'
Doesn't mean it's a 'gate', Apple is bad or anybody here is calling someone's baby ugly. I think it falls in that category of general technical issues that impact all devices.
BTW- Jury is still out on how the reload impacted the GPS/battery issues I was having. On the plus, the GPS worked perfectly yesterday when I drove about 130 miles around the metroplex. The bad news is the battery is still off. It drained at a regular rate (finally!) but then powered down at 42% and displayed the dead battery icon.