I have been using Evernote since about March '09, and have found it to work well (4499 notes as of today). I have always known they analyze images and extract the text in the background to index it, but never had occasion to make use of that until yesterday.
While searching for a particular person's name, I saw that Evernote found it on a screen shot that had been pasted into a note. Now that was impressive, because it was an image of the name; there was no actual text there. Evernote recognized the text and indexed it; in fact the text was even highlighted in the image when I searched for the name.
I also use Evernote to store images of all the business cards I get, rather than leaving the cards in a pile in a drawer. Along with the image of the card I usually a few words about the person and why I have their business card. Now I know that Evernote can find all those names in the business cards. Taking the idea a bit further, if you take a photo of a meeting room whiteboard, Evenote will analyze and OCR (Optical Character Recognition) the text, and then index it.
All of this takes Evernote's usefulness up a notch!
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