I've created a web site with a simple "What-you-see-is-what-you-get"-editor to create basic flyers directly in your web browser and have them generated to PDF documents.

http://flyerfrog.com/

This is still a simple prototype but I wonder if anyone thinks it's an idea worth pursuing, and if so with what functionality?

Please note that the javascript is written hastily as a proof-of-concept and therefore is not very elegant, and the editor has not been customized for Internet Explorer or mobile devices.