Hi Jishnu, Ram,
Thanks a lot for your answer, it's great to find people around.
I did some research with REST and it works great, however I'm still concern with security sending POST and GET through ajax, is there any way to protect the javascript code for facebook canvas or websites? I know devkit minifies all the code.
Ram, I would really like to see a parse plugin ! , I can help you with that.
Parse supports push notifications and it's open source now.
Cheers !
Juan