I have a grandfathered plan like most of the AT&T subscribers because the plan seemed too good to lose. With the iPhone 5 the plan now involves LTE and will throttle data at 5GB opposed to 3G (faux 4G) at 3GB. I've only hit this limit once on a weekend I was streaming a lot of WatchESPN. How does it get implemented and what speeds should you expect? afterwords?