I have written about it before, but evolution is still not in the standard seclection in beta 4. And you advertise it in the images that you display during install. A normal user would then, reading the advertising messages have gotten interest in evolution and would naturally expect it to be available in the standard installation. So I think you should either remove evolution from the advertising messages, or you should put it into the standard selection. IMHO evolution is a key application with its MS compatibility.
Keld