Samsung SideSync

Samsung is one of the best when it comes to Android customization features. This is an interesting one: SideSync (the link goes to GSMArena post, as it has more explanation rather than just the video). It's a very interesting feature where you can share screen and all. There is just one trouble: you need a Samsung PC for that, which is a very grave downside. I think Samsung is trying to protect its sales of PC (including notebook PC and tablet PC). Let's wish that they change their mind soon. By the way, the companion app in Android is already available in Samsung's own App Market. There is quite some complain on the availability of the program on the Samsung PC side, though.