can someone tell me what is the good and bad points of windows phone 8? i'm interested in the Lumia 1020 and the OS looks awesome but need to know what are the bad points of it(lag, hang etc..) btw i dont really care about the apps act as long as i got facebook and twitter.

Using Lumia 520(the youngest of the Lumia series) and is perfect for me. I am not very much into games and only use Facebook and viber and it is working perfectly for me. The battery lasts for 2 days or sometimes even more and this is a very good performance as compared to any other android at this price probably. It doesn't hang or lag like android. I love my L520.

facebook has got a beta app that performs quite well, maybe not enough features such as organizing facebook pages, but there are other apps out there that does the job.

For twitter, there are many options of apps out there, but the official ones does the job, stable as well, and pleasant notifications!

About youtube, hmmm there's no hope for an official app that is really good, optimised as Google tends to block what Microsoft is doing. Yet again, there are good apps that are great such as Metrotube and mytube.