|Yes MIMA works fine with the CVT. Paul Andrews in the UK is racing his CVT with MIMA.|
Paul has run some efficiency test, and here is the thread discussing his results:
CVT economy test
From the hypermiler side of the street, I cannot offer much regarding how well MIMA can improve MPG with the CVT,as there are not many installed.
Several new CVT owners have reported ~ 10 % improvement in MPG with MIMA