From Baboon Software:
In a nutshell, Baboon Webforms is a webform creator. We created this service because we want to provide webmasters, blog creators, content writers, with an easy way to create webforms to get feedback from their visitors.
Making your visitors click on a mailto link and then putting them to work in writing you an email, still doesn't give them an easy way to send you the exact information you need. Thus, writing them back the replies requesting the exact information you needed in the first place, it's just a waste of time and effort both for you and your visitors as well.