Why not add UK mobile companies as well. Charging exorbitant sums for overseas data, when there are no interconnection costs and you are simply connected to the net directly via a local point of presence, is in my book profiteering plain and simple. It's like hotel mini-bar prices, but with no option buy drinks from the bar (with the exception that I now swap my SIM for one from a local provider out, but this doesn't excuse the Telecoms firms because a) you lose your number if you do this b) many punters can't do that because the phone is locked).
If they want us Brits to look a little more favourably on the EU than we currently seem to, perhaps they should be adding UK Mobile Telecoms firms to the charge sheet.