I like how figures of ?14/mo, ?30/mo are thrown about like small change - to me, paying anything more than ?10 a month for data is RIDICULOUS, it's a proper pisstake. ?2.30/mb on O2 (who I was last held captiive by)? What a joke. Orange's charges are even worse, ugh.
T-Mobile are the only reasonable network when it comes to data tariffs, and for that they have a thousand thanks from me (and valuable word of mouth advertising), they're not stupid. I've seen people move from their previous networks solely because of their sensibly-priced data packages, which means so long as they keep their punters happy with fixed-price data, it's easier budgeting for people like students (like me!) or those who don't have big wads of cash to spend on occasional data use. And so, in turn, it's a lower churn rate for them when contract renewals come up (I intend on staying with them so long as they don't balls up their packages or royally dick me about like O2 did). This in turn increases advertising revenue for them from their associates and lets them ask for more because they know that they have a (somewhat) loyal userbase. I think I could even tolerate a slight price increase on the existing charges because even if the price of WnW and/or the tariffs did go up, they're still the best thing out there. They've found a nice balance, and I can see it making good business sense for them too (hell, they wouldn't have done it otherwise).
I reall am hopeful that within the next 12-18 months, the amount of users who 'get' mobile, fixed-rate data access on their devices reaches critical mass, and hopefully with 3's similar deals and their new X-Series with the SlingPlayer bundled, eventually consumers will realise a good thing and give TMob and 3 even more customers... And give the fustier networks (O2 and Orange in particular) a good kick up the arse and push them to deliver better value for money on their data access, which directly contrasts with what they're doing at the moment (raping the bank accounts of those customers who like a bit of data access along with their voice and SMS). Outdated business models still seem to abound in this country, it's as much a cartel as I've ever seen (mutually-assured destruction springs to mind), I admire T-Mobile for braving the waters and trying something new out.