[tommi]

Not going to happen. Part of the reason is just what you mentioned: they care about their customers. With various clients they would have to support the problems coming from all of the clients and that would cause their service to look bad even though the problem lies within client app.

[Touche]

You are really fluent in newspeak aren't you.

That's a crazy weak argument. I'm sure glad JPEG's aren't limited to only work with apps created by JPEG Inc. Dropbox's new image app would be pretty worthless if every company was as insistent about keeping things proprietary.