Of course, you'd really have to make a concerted effort to chew up that much data in that little time—but it's easier than you might think, especially at the 21Mbps speeds PC Mag saw. Generally, though, on Verizon's plan you can watch about 7 hours of Netflix in standard def, say. Or two hours of BitTorrent downloads. After that: poof. Your monthly allowance is gone. $10 per GB thereafter, please.
The low caps make LTE a conundrum for heavy users. You've finally got the speeds to conquer the internet (or at least watch a lot of goofy videos) but a potentially severe financial penalty for actually doing so. It's early days, though, and Verizon's indicated that data plans may well evolve along with networks. We'll never get back to the days of the all-you-can-download buffet. But hopefully we'll be able to use our shiny new toys one day without paying through the nose. [PC Mag]