Our own Jeff Carlson has written a piece for 500px explaining how to use your iPad to up your photography game. No, not by taking photos with its built-in camera, but by using the iPad to preview, edit, sort, and share photos, and even to control your camera remotely.follow link
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Quick Look Shortcut in Expose on Snow Leopard
In Expose mode in Snow Leopard, hover your mouse pointer over a window and press the Space bar to view a larger Quick Look version of that window.
Using an iPad to Improve Your Photography