I am planning for a iphone.I have 2 quesions to clarify

Does it connect to i chat?

Can I run MAC OS X Programs in iphone?

Also suggest me best deal for iphone (I checked the site called dragonrewards.com which claims that they offer cash back reward).Is it worthy?

If you jailbreak your phone, you can get mobile chat. No, you can't run OS X programs. And there's no way you're going to get an iPhone plus $1000 for a 3 minute survey.