Hi friends. whatsapp is best application for social networking, chatting, net calling, photos and video sharing and much more. also you can sharing contacts, files or your current location. you can make your own group and chatting with all group persons. whats app is very fast for instant messages and sharing. I am using the whatsapp since 2 years. I was very good experiance for using it. you can all time connects with your friends and family. such a very good application it is.