Are you sure? I have never heard that nor could I find anything in the roaming regulation. I just checked a few (German) mobile providers and all charge more than you suggest.

I know ALDI Talk changed theirs down with the justification that "the EU roaming regulations also apply to calling from your home country to another country".

Telekom still charges up to a euro per minute and the price list was updated last week: http://www.telekom.de/dlp/agb/pdf/43777.pdf I know why I'm not a customer there...

Wow, that’s impressive. There’s another good reason not to use T-Mobile.

Aldi Talk costs only 0,12€ to US, Canada, Mexico, and only 0,11€ to EU (same as nationally).

My Austrian provider charges 80ct per minute to call other EU countries. (SMS are cheaper because the rate for SMS is independent of the destination country).

Calling other countries is not roaming.

Yes, but that's the issue that the original post in this thread (https://news.ycombinator.com/item?id=11601100) discussed (calling other countries from your home countries is more expensive than calling other countries while roaming).