Teltarif wrote an editorial today lame the wrong actions of the EU commission on reducing roaming rates. Lead sentence also lamented lack of competition in the telcom industry/roaming.
Personally, I think there is plenty of competition with UM, TravelSIM, 09, etc. Below my response in German. Basically I say that until the European consumer yanks his national SIM card and replaces it with another ---- thereby depriving the nationals of their roaming income, until that happens, they can't expect any changes.
http://www.teltarif.de/forum/s22030/2-1.html
I put in a plug for this site, too.
As I have written elsewhere, I think most people are just creatures of habit and not willing to try something new. Gasp, you would have to retrieve your national mobile voicemail from a landline phone using an international calling card! How intolerable!
I find that teltarif does not give international SIM cards the credit they deserve. Now it is true that the entry fee is somewhat high and the home networks are a bit odd. Nonetheless, if someone must reach you, for business or in an emergency, they will probably call you.
Stan