Now that I think about it - Apple had the problem that Nokia is having now. It used to be that not a lot of people made applications for Mac. They went as far as to create a PC emulator and then they switched over to Intel's x86/x64. Now it seems that every mobile application out there is first made for iOS, then Android, maybe Windows Mobile, and most likely not Nokia.

Third party applications are really what matters, the ONLY application I ever paid for on the N900 was Kasvopus - it worked really well. But compared to the gasp official Facebook client, not so much.