RIM is getting its lunch handed to them in other countries too with cheap android phones. Check international market share. Wifi calling across platforms is not a new feature there. It is another example of RIM playing catch up to the market feature that was at least 2 years old.
Blackberries dont have front facing cameras so all they could do was voice at this time. Another strike against it against IOS and Android.
I wonder if Skype is not going to be on BB10 considering that BB is investing so heavily in a native video calling app.
BBM is now 62 million & BBM voice will make this number grow I can assure you. It would also translate to bigger sales of BB7 in developing countries. I am not sure why I don't see it that way. This is very positive news and it shows that Rimm is innovating on all fronts.
In regard to Skype. I can only tell you that Rimm and MSFT have a strong relationship way before NOK came to the picture. Having said that skype should be coming to BB10. Why would MSFT miss out of on a big potential with BB customers. 80 million and growing with a number toping 100 million in a year or 2