I was surprised how intuitive coding with the Echo2 framework is, everything I tried to do worked as expected the first time around. For a developer with Swing experience, the learning curve is very low, and the resulting applications are impressive.Mr. Heffelfinger was working with the classic "guess a number" application, though, as opposed to trying to write a bigger, "more real" application, and the changes he introduced to try out the Echo2 framework were fairly minour (buttons aligned horizontally as opposed to vertically, for example).
A release of Echo2 should be available soon (it's in beta, currently). Has anyone tested its speed or scalability, or do you have experience working with it in larger, more complex applications?