Quote:
a portable version of Photoshop for use on location?

Given the UI feature overload that is any modern point-and-shoot camera, it's hard to imagine how you could make this work. Remember, back in the ancient days, when some Kodak cameras supported external applications? These days, you'd probably do that with J2ME or something, but it might still not be the right way to go. (Also, camera vendors are desperate to offer any feature that might differentiate them from their peers, as opposed to having another licensing cost that further strains their negligible profit margins.)

What I think might be better would be a tighter coupling between iPhoto/Picasa/whatever else and your web browser, such that when I'm staring at a post editing form, like the one I'm using now, I can flip over to Picasa, press one button, and it resizes/scales the picture, posts it on the web somewhere, and places the URL in the cut buffer surrounded by the proper IMG tags (which, naturally, vary from one board to the next).