The most interesting feature I like in VC 2008 is the parallel build capability.
The /MP option can reduce the total time to compile the source files on the command line. The /MP option causes the compiler to create one or more copies of itself, each in a separate process. Then these copies simultaneously compile the source files. Consequently, the total time to build the source files can be significantly reduced.
and here is the screenshot when compiled with /MP flag on an 8 core processor system: