Please don’t go for this phone (GT B7722), this phone apps responds very slowly and some times it hangs. Twice I changed the mother board and nearly for two months I spent my time in chasing the service center, but at last the end result was same.I think this is the first phone of its kind from Samsung with range of features like dual sim with 3G and front cam, but still they need to fix those bugs to make it better.
Thanks to Samsung for refunding my money and now I own Galaxy Ace.
Ace rocks :)