MockMaker is a glue module that integrates dexmaker with Mockito. It does what's necessary for Mockito to generate concrete classes with Dalvik .dex files instead of JVM .class files.
It's possible that Powermock will work with Dexmaker, but it's unlikely advanced Powermock features will work. In particular, Powermock advertises this:
PowerMock uses a custom classloader and bytecode manipulation to enable mocking of static methods, constructors, final classes and methods, private methods, removal of static initializers and more. That custom class loader is unlikely to work on dalvikvm.