Ent App Block 2.0 + Dev QA Production Configuration

Hi,

Do I have to have different config files for Dev QA Production, If have to use Ent App Block 2.0 Especially because I have different connection strings and email settings.

This is driving me nuts .... i dont believe the architects didnt take care of this simple complexity!!!

Please let me know if you have any other suggestions or pointers in the right direction!

Thanks

~Indo.