For ideas like that - untethering the Camera from a PC - at the SDK level, for Canon - why not simply shoot the idea to their Australian research lab CiSRA in North Ryde. They love ideas that lets their stuff get ahead.
Maybe shoot an e-mail to one of their directors - I'd advise pinging Jim Metcalfe on
jim@research.canon.com.au suggesting the desire the 5,000+ strong Australian Astro-imaging community would have for this? Jim's a great guy. Mind you CiSRA are ultra secret about their research - they are not a marketing company - they are the patent / capability based engineering firm. So if you approached it - could you please evaluate the opportunity to enable XYZ - as a large user group would really like it - they'd be delighted to get ideas from large user bases.
My 2 cents!
Matt