My advice, however: Buy Nextapp (the Echo2 guys) for
EchoStudio....develop the hell out of it...and merge GWT and Echo2.
Then I'm a happy guy... ;P
The Google Web Toolkit is licensed under Apache License v. 2.0, which
is much less restrictive, especially for commerical applications.
:-)
The sources are in the jar files. At least most of them....
-Jani