Benny, I'd buy your argument if and only if any of those 100 millions Skype users were taken from other alternatives. In the case we're talking about, they were not. They already exist. My point was that they represent potential new N800 users. Will that potential be fully realized? I'm not that naive. But, again, I was specifically addressing potential alone. Ironically, that also goes for your comment about Skype taking away the option to use: it CAN, but won't necessarily do it.
Nokia still intends to provide open SIP.