One of our clients required a very simple WordPress plugin to allow them to collect email addresses on their site and to output those in a convenient format. The result was the PixoPoint Email Submit plugin which adds this functionality to your WordPress install.

The design of the submit form can be modified via your themes stylesheet.

The plugin has been submitted to the official WordPress plugin repository and will hopefully be available there shortly. In the mean time, check out the PixoPoint Email Submit plugin page for a download link and more information.