I wonder what the EC will mandate? If it's that a network can't charge any more for usage in another EU member state than at home, will that still have a maximum rate for calls/texts/data, or will it be considered that competition will keep rates down naturally?
I suspect that the tight pricing controls currently levied might be lifted to a degree, and it's then easy for operators to find ways to get around the 'spirit of the law' so to speak. The networks all have form for this, which is no doubt the same around the whole of the EU.
And perhaps too much attention has been on normal call charges and data, and so that's given the scope for calls to other numbers to sky rocket without people really noticing or making a big fuss (has the media made a big deal of these rises, for example?).
I also continue to believe that we'll see the inclusive data allowances working for the UK only, so that if you go abroad, you'll pay per megabyte. Even if that rate is within the current EU cap (or is lowered further) it's still going to be a lot higher than UK rates. [And let's also remember that outside of the UK it's going to get very messy indeed].
Either that or operators will have different types of bundle. You'll start with your normal UK & EU tariff, with high priced calls, texts, data, calls to special numbers, and then be offered a discounted UK bundle of calls/texts/data etc or one that works within the EU, at a higher cost.
Does that get around the rule about no extra costs for roaming? I bet it does/will, or at least until the EC has to then act again - which might take another few years.
Sometimes it's just about buying time. The operators will know full well that it won't last forever, but make the most of it while they can. If the EC is anythng like Ofcom here, it will be rather toothless and slow to act and the operators will always be one step ahead.