I need to generate different assembly names depending on the platform target. For example, I have a console application "bob.exe". Instead of building for AnyCPU, I need to build explicitly for x86 and x64 and thus want "bob32.exe" and "bob64.exe". The Application tab in Visual Studio 2010 project options disables the Platform combobox. Build Events also don't allow options per platform so I can't rename it afterwards very easily.
Update: Manually editing the project file seems to work best, no extra files are part of the build and the pdbs have a matching name.