After spending some time with Vaadin and developing a small application and a usability framework the moment came in which Vaadin application had to be integrated with another existing application. The integration wasn't tough at all due to the nice work done by the Vaadin folks.
However at my place we have separate team for Vaadin core development and jQuery / JavaScript doing the client side hacking. So to make the job easier for both the sides I developed a small Contact Us demo application which creates a Vaadin form and beautifies it with jQuery Effects and Tooltip plugin.
