Well mark my words, the price of the service will increase annually in big chunks every year.
Eventually even the free computer to computer calls will require either a monthly membership or a per call fee. This is how they always operate. Suck everyone in with free or low cost, then when they have 100 million users they say "well, what the hell, so we lose 75 million of them, let's charge the hell out of the other 25 million and we'll show huge profits to our shareholders"
