I havent found anything broken with my Lumia 920 all apps that I have installed work skydrive works the only thing i dont like is the new thing you use to put music on it with zune was simple to use and the new thing has very basic functions. I dont know if I have been lucky with my phone and got a good one or I just dont use it as much as some people do to find the problems but I do use it alot and never had a droped call, texts always send, internet when off wifi is fast unless im only getting 2g witch isnt very often and I think I have had only 1 app close on me once. So all in all for 3 months I have been happy with it and with the polycarb body I can see it lasting 2 years easy and in better condition than my HD7. I did think about an Iphone when I got my 920 and im so glad I didnt because I HATE the new Itunes I cant put any new music on my or my girlfriends ipods and from what I have read I need to factory restore them so to put anything on my girlfriends she has to lose all the music she has got from friends and other places. Apple SUCK.