I finally got this working. :)

Two bugs:

- The default Heroku stack runs 1.8.6. Most folks on Snow Leopard are using 
1.8.7, so make sure to switch over to the Bamboo REE 1.8.7 stack when you 
deploy.

- Safari, under some circumstances, will improperly close http connections when 
processing a form upload. When this happens, the upload never completes. You 
can fix this by setting your Keep Alive value to 0 on Apache. Alternately, 
there are some good javascript techniques for getting around this.

In summary, the exifr gem is a great choice for EXIF extraction. It is 100% 
Ruby and has no dependencies on third party libraries, so it should work 
anywhere.

-- Patrick

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