With a PMUv2 you 'could' indeed remover the board but as others have rightly said, you still have to find a mounting solution.
The Phantom is fundamentally an F330 with a pretty shell and custom shaped ESCs. The PMUv2 takes on the task of all the components on the original board with the exception of power distribution to the ESC's.
In an ideal world you create you own power distribution board around the NAZA using DIY techniques like this:
http://www.instructables.com/id/DIY-Pri ... uit-board/
If you are willing to sacrifice the ESC LED's you could replace them with 30a ones and low and behold you could then slap a 4s battery into it. Hell still some 4s capable ESC's and you could slap a 6s under it if you felt brave!
Assuming you are happy with 3s then a good option would be to create your own Mounting plate for the NAZA (I would suggest using plastic from a clear sandwhich box as it is light weight, rigid and see-through which helps marking out!).
Then buy something like this to handle taking power from the batts to the ESC's and mount it to the new mounting plate.
http://www.hobbyking.com/hobbyking/stor ... board.html
As OI suggests you need to be careful about where you mount the NAZA. The NAZA Assistant lets you change where the GPS Puck is in comparison to the CG (where the NAZA is meant to be mounted) but remember the Phantom splits the 'puck' into two with the GPS in the shell and the compass on the legs so changes could have a really bad effect.
Great little project for those that like to tinker but very little to gain unless you do go the 4s route. When you factor in 4 new 30a Opto ESC's you will probably start asking yourself why you didn't buy a GPS puck and a 330, 450 or 550 ARTF kit.... or better still a full NAZA M lite ARTF kit so you can have two birds!
