iPhone Keynote Remote on networks that don't support broadcasting?

[Tofer]

Monster wrote:
how about sharing the network connection from your MacBook, then connecting to the MacBook over the new ad-hoc network.

I second this, although I wouldn't term it "sharing the network connection" (which would happen in System Prefs-->Sharing), rather just setting up an ad-hoc network from the Airport menubar-->Create Network to set up your own mini-network. I've done this many times with success.

-Tofer