I now try to avoid building as much as possible and I suspect more people will be following suit if the build time continues to increase.
We could develop a lean target that only builds the bare apps and libraries required.
That's one of the things I experimented with while working on my C# rbuild implementation http://www.marcpiulachs.com/reactos/designer.html . My intention is to end up adding that kind of Platform Builder like feature to our C++ implementation
Regards, /Marc