Agree with John (although I know nothing of iDeviceDesign), there's a lot of work to be done to acheive what you're trying to accomplish, and not just once but on an ongoing basis.
Streaming video over a LAN environment vs streaming video over the 'internet' environment are very different problems. Consider the fact that a LAN typically has bandwidth an order of magnitude greater than an end-to-end internet channel--that in and of itself forgives many sins that may prevent internet streaming from working at all. Not to mention issues of addressing, authentication/entitlements, connectivity, packet loss, etc.
Some challenges are technical, others are more strategic. A full time team is necessary not just to get a solution working but to continually support and evolve it on an ongoing basis so it remains competitive and relevant.
That's not to say it's an impossible challenge. Today more than ever prior art supports this kind of application with tools, technology, and experienced people who can help. But just as IP video in entertainment doesn't seamlessly translate to surveillance, we have unique challenges applying much of the 'internet streaming' technology to our applications. For example, most of the internet streaming technology used by Netflix, iTunes, YouTube, etc., are about static prepared content streamed from large servers on CDNs over high bandwidth pipes to the client. Whereas you'll be dealing with dynamic 'live' content streaming from relatively small servers over relatively low bandwidth internet connections then out to your clients.
Good luck and keep us posted.