Using a wireless mouse with an iPad
You have to hurdles to overcome: 


Apple's operating system does not pair with Bluetooth mice. You need to overcome that to use a mouse. 
Apple's operating system is designed for multitouch as opposed to a single pointer, each application that you use will need to handle the mouse input and juggle it with other multitouch inputs. 


You can review other people's failure to use a mouse with iOS on these questions:


Using mouse from OSX host on iOS device
How do I hover on the iPad?


Basically keyboards and stylus are supported. Mice and trackpads are not currently.