A good news for those using a Samsung Galaxy Y- A new app called VTOK. Now does video calling using your rear camera. I tried using this app and found out that its one of the very first ones for doing a video chat. So far, Skype or Gtalk provided only voice services and video chatting was absent.
It was obviously lagging, but nevertheless, it worked fine. Thanks for making this app. It can be easily competing the likes of Skype and Tango. One big requirement is that you need either WiFi or 3G working to make the video stream. Also, get a good enough mirror so that the absence of a front camera on small devices is taken care of.
Test to this Device
1) Samsung Galaxy Y
2) ROM: Jelly Blast v3.03
3) Network: 3G
Download: click here(google play)