Hmmm. This is a weird idea. Any idea if this works outside the UK/Europe? Not that I would pay to surf on my phone, when I can do it for free now....
Btw, Opera is by far the largest (size-wise) of all the mobile browsers, and my experience playing with it was that it was simply not any better than the little 65k Doris browser. Others may argue, but I couldn't get it to do simple things like log into Hotmail.