The fonts are from Google Web Fonts API. Check out the examples for some awesome stuff that can be done with the site. Also add an example if you are visual talented. Finally, I'd like a lot of feedback on what needs to be done to make the webapp great.
Initially, I was under the impression that this tool generates an image. Then I realized that it uses Google's Fonts–which makes it infinitely more useful for super fast logo prototypes. I would Make this more obvious. Don't hide the final "copy-and-pastable" CSS behind a link; it's the best feature.
It could also find more varied use if you allowed the user to input more text at smaller sizes in order to generate Google Font based CSS for other elements of a layout (or to preview how a logo would look at a more realistic size).
I would suggest a slight redesign of the controls on the left so that it is clear which elements affect the font and which are purely for the shadow. Similarly, the "submission" of a shadow to the list of shadows needs a more obvious description (both verbally and visually) of how this process functions.
Overall, I think this is an excellent way of getting a (placeholder) logo up and running in 20 seconds and I'd love to see how you expand on its current state.
