Is it possible to set up a ad hoc network between an iPhone and a totally different device like camera,scanner or printer and build a data tunnel between them to exchange data or services.

I believe iPhone does not have the provision of creating an ad hoc network. So i am assuming that the other device are the initiator of the ad hoc network.

I tried doing the same with a mac book and iPhone and i could surf on the phone after enabling internet sharing. But i wanted to make sure that its possible with other devices as well

I believe the upcoming WiFi Direct is a way to do it.