I think Apple missed the boat with this one.. I cant imagine Pentax, Sony, or Canon wanting to partner with them .. Maybe Olympus would like too as a kind of life line ..
I dont see how adding functionality to a device can be a negative thing. Point and shoots are a good platform to test on, more and more recently I have cursed my phones camera quality and wished I had a decent camera with an internet connection and apps so I can upload better quality images sooner.
Personally I think its a great idea, given a little time and refinement it will develop into something we all end up benefiting from, the obvious plus to a mobile OS is that you can incorporate tried and tested internet and network solutions, be it mobile data or wifi, also a huge amount of useful apps, imagine Flickr, Facebook or Photobucket, shoot photos, immediate upload to online account, could even shoot with out on board storage. About time this pushed ahead.