Alright, folks -- if you've already got a T-Mobile UK account in your back pocket, you can breathe a sigh of relief, because that ugly new data cap doesn't apply to you. It took the operator just a day to realize that putting a hazy "fair use" restriction of just 500MB per month on existing accounts wasn't going over too well with its customer base, so they've conducted a "further review" and decided that they'll instead only be applying the rule to new and upgrading customers only. We wouldn't call this an outright win by any stretch -- the policy is still enormously restrictive, vague, and a pretty clear-cu