he said performance improvements , wide pictures .. that's it no major upgrade... u can see friends on news feed u lucky not all lucky see the forums on wpcentral itself.. also u many features missing... same with twitter, and many apps .. apps available but they are basic or of low quality as other os.
You were complaining that the app is slow, you confirmed what Joe said (performance improvements), and now you're complaining about 'no big updates'... You don't even know what's gonna be added/fixed in the update since there is no official changelog, or even a RUMOR.
Try to understand, that if I CAN see my friends activity in the feed, then the app is capable to show anyone's activity in the feed. If something is working wrong on your phone - it might be your own phone's issue. I didn't check the entire forum, I'm sure there are other people who are experiencing different issues with FB app, but please don't generalize your own experience.
I agree, some apps are lacking some features comparing to those on Android on iOS, but what did you expect when you bought your phone with an OS, who's market share is SMALL comparing to the same OSes? You will NEVER see a mobile OS which has EVERY feature in the world. But since you are complaining about something that you need and is lacking - you should change your device.
If you really want to use a Lumia phone (or other Windows Phone, whatever), you should HELP the OS to become better. It's not only Microsoft's and developers' task, EVERYBODY are contributing.