Could just be so easy as Lodsys going after the small developers to force Apple to pay up. Going straight for Apple will probably drag out for ages in court, while going after the developers will have an immediate chilling effect and forces Apple to at least consider buying out the patent without much of a bargaining position.
I agree it's harder to violate the GPL than most commercial licenses, my point was that it's a bad idea to use _any_ license - FOSS or commercial - without knowing what you agree to by using it.
The limitations are usually there, just in different forms for different licenses.
ICQ was quite popular among the people I know (in Sweden), but since AOL bought them I've only ever heard of them in the context of being considered for sale or now being sold. The service works internationally for sure, but the little marketing I've seen for Live Messenger totally crushes anything I've heard about ICQ for years. In the context of the Internet, no news isn't good news. No news is abandonware.