sunnyujjawal - 9:37 am on Nov 9, 2012 (gmt 0)

Everyone can make copies but the original has such viral traffic and a loyal community that while they may steal the functions and features I doubt they'll make a dent in the overall usage at this point.

And what you think about G+ & Facebook.. defiantly G+ is a copy. Also Microsoft is trying to enter this market using [so.cl ]