A company called Adheretech has recently updated their wireless pill bottle, an improvement on GlowCaps' model. Rather than indicating when the bottle is opened, it indicates how many pills are remaining.
They aren't selling the bottles yet, so there's no indication of pricing. They do have 3G antennas, though, so patients wouldn't need internet access; they'd just need to be within range of a cell tower. One of the articles indicated that they have a 45-day battery life, but no indication of how rugged / reusable they are.
(As a technologist, I'm also encouraged to see that they're opening up their API.)