Peter Woit is about to launch his book. You can take a look at the slides he gave at colloquium talk at the Texas Tech math department, here (//http://www.math.columbia.edu/~woit/woit-texastech.pdf). Woit is working on QM interpretation by looking at the mathematical framework of the theory, which in IMO is the right angle of attack on this controversial aspect of QM. It's good to go through the slides just to get a basic idea of what's involved.