MyFaces for production? Not even conformance with HTML 4.01?

[Stefan]

Hello,

I am evaluating JSF as an option for our next web project. I did some 
basic evaluation with Suns implementation. It works fine and was easy to 
get started. We would like to use more elaborated components and I took 
a quick look at MyFaces and Tomahawk. Unfortunately not with the same 
success and hopefully all my "beginners fault". First of all, I did 
still not manage to run MyFaces 1.2 successfully. Even in a most basic 
"hello user" example, I get a lot of complains about value expressions, 
which are not permitted as attribute values (Java 6, Tomcat 6. Could 
this be the problem?). Next I looked at the latest Tomahawk examples. 
They use MyFaces 1.1 but the resulting HTML is full of errors and 
warnings. Even with my most basic "hello user" example (only one button 
and one input field), I get complains about invalid name and id 
attributes. The values start with underscores, which is not allowed in 
HTML4.

So I wonder if it makes sense to continue with the MyFaces 
Implementation. Did I miss something? Don't You think, Spec and HTML4 
conformance is important? Do You know other implementations, which are 
adhere to the Specs? I appreciate any hint or comment.

Thank You all
Stefan