Want to take advantage of blazing-fast LTE speeds in the UK? You better be prepared to drop a few dozen quid, each and every month. The nation's only LTE provider is clearly taking advantage of that exclusivity with gigantic tariffs, like £31 (about $50) per month for 3 gigs of SIM-only data (and "unlimited minutes and texts"). If you speed a lot of time pulling down content on your mobile, though, a new 20GB plan makes the carrier's pricing structure a bit easier to swallow. Customers who sign up for the new 12-month "super-user" plan between now and February 28th will pay £46 (about $73), while a smaller-cap 8GB offering will b