[Import Photoshop Presets (and Illustrator Presets)]

Just putting a +1 on these features.

[Local editing of saved 'Styles']

I'd love to see this changed so that you can edit the styles (in the styles panel, maybe with some sort of flyout) after they are saved, and those styles will carry over to any object they have been applied to. However, when I select an object with that style applied and begin editing the style of it, it unlinks the "global" style that was applied.