Update: Some readers are reporting that mobile carriers in certain EU countries have already raised their plan prices, although it's still unclear if this is a direct result of the legislation that came into effect today.
Not surprised by this.
To be fair, roaming does incur extra costs and the consumer who uses a service that costs more to provide should pay for those costs. The scam is in the exaggerated prices that consumers had to pay until recently.
I don't work in the cell business, so I can't confirm. I'm a little curious why, but can't say that I'm totally surprised by that, either.