It seems to be quite effortless at creating them, so well done on achieving the "super-easy"-ness..
Some things which would be helpful and the information I couldn't find despite looking.
1) This comment applies to everything that I use, so it's not just relevant to your product. While free now, how do you plan to monetize. This is important for prospective users because time invested in your application could be wasted if you don't have an end goal in mind and end up discontinuing the product and making it unavailable for use.
I think it's important for users to know that you are getting "something", to avoid a gowalla situation where you sign up 1000s of users and then can't convert.
So basically... I think that you should provide some insight into how you plan to charge. ie. Flat rate of X per month or something.
2) What's the page overhead. ie, While super easy, is it all loaded AMD style and super lightweight. What dependencies do you have. ie jQuery.
3) As a suggestion, you shouldn't just "encrypt" your JS source for this. I've just "decrypted" in about 15 seconds. Since everything you are doing is basically just JavaScript, you should consider implementing something like Typekit/Optimizely for how they serve up their JS files. If you don't want to go through this route, which would be perfectly understandable, then you should at least build your javascript, using something like closure or shrinksafe. But what you did by wrapping it in eval() is as good as useless and pointless. (EDIT, actually I can see you have shrinksafed it. I didn't actually look passed your CSS styles).
Overall, It works well, quite impressive.