I don't really understand how this works. Does it just load an image from the unsendit server as the content of the email, which is re-generated on their servers?
I can't imagine how it would work otherwise.
I just signed up and tested it. It loads an image of the text... Cool idea, but impractical for any real type of usage.
Isn't gmail supposed to pre-cache those types of images for you? I saw that the demo video used gmail but I'm not sure how. :?