True, these are only my individual observations, but after the legislation the prices for mobile subscriptions seem to have increased. Now almost every subscription has 'unlimited SMS' but the internet bundles are priced higher for what you get than before the regulations.

However, this increase of course would also have been the case without the new laws (as you say, as people move from SMS to Whatsapp, they have to compensate). The only difference is that they now can't differentiate between different uses of the internet, but only on the amount of data you get.

I don't think the net neutrality isn't such a bad thing price/economic wise. I'd rather have this clear system which might mean slightly higher prices for the average consumer than a system in which different prices for different uses of internet make calculating your actual costs more difficult. In my opinion, that would only give more opportunities to telecom providers to screw you over with little details, rules and clauses in their contracts -- something which history has shown they don't shy away from (rounding up every call duration to a full minute etc.).