I know when I purchased my PHAT PS3, on launch day, there were a number of things I couldn't do or use at launch. The PS3 went through many many updates that added a host of features. Here are just a few.
* You couldn't access the XMB while in a game. (You can now!)
* You couldn't send or receive messages with your friends. (You can now)
* There were no dynamic themes. (There are now)
* You couldn't make your own custom themes. (You can now!)
* You couldn't listen to your own custom soundtracks in game (you can now, if developers allow it).
* You couldn't take in game screenshots (you can now, if developers allow it).
* You couldn't collect trophies. (you can now).
* You couldn't play games or movies in 3D (you can now).
These are only a few features, that we take for granted, that were all added by Sony to the PS3 AFTER LAUNCH! These are some pretty significant updates, on a system with much less computational power and RAM than the PS4.
Some people in this thread, and others, are making this huge deal out of this. Look, I stream videos several times a week to my PS3 from my PC, IT sucks I will not be able to do it at launch on my PS4. However, I will be patient, and these features ill come. These things will be added, in time, just as a ton of features I listed above were added to the PS3.