I have been using G-WAN for about a year. If anyone has specific questions regarding it, I will try to answer them.
I have tested the claims and find them to be legitimate.
If you have a more specific question, I may be able to provide more details.
Perhaps these forum threads will help.[1][2]
[1]http://forum.gwan.com/index.php?p=/discussion/393/how-to-dis...
[2]http://forum.gwan.com/index.php?p=/discussion/comment/5812/
* A small, yet useful set of core APIs (http://gwan.ch/api)
* Applications are recompiled on the fly when a change is made
* A "no compromises" attitude to performance and software design
* It supports legacy applications written in CGI-style without the cost of CGI
See this article for an interview with the author of the project[1]