i'd suggest you look into building a custom midi controller rather than using the power glove as your platform. they are pretty bad, cool concept but terrible performance.
i think you could do this in two ways with relative ease. the first would be to alter arduinoboy code to reflect your custom controller's input 'stuff'. so, if you took a normal glove and stitched in an analog bend sensor into each finger, you'd have 5 analog inputs right there. you'd assign what that analog input would do in the code, just let your imagination go with that one... you could take the same glove and stitch on any number of input devices. analog and/or digital. even make your own switches with stuff like aluminum foil or copper sheeting, or etch your own inputs (PCB style) that have funny shapes or whatever.
the other alternative would be to take a step back from this, leave arduinoboy as-is, and then use one of the many available 'make your own MIDI controller' kits and, well, make your own! same thing... bend sensors, switches, whatever you want. each kit has its pros/cons (and its been a while since i looked into that stuff) so it might be easier to start by making a list of features you'd like for the controller and then see what is available which fills those shoes. hopefully the kit allows for adjustments of the MIDI parameters so you could change CC# stuff or whatnot to fit your needs exactly.
tbh there are a lot of things you could do, i think those are maybe the simplest (in my mind at least). the second one especially. i'd just drop the power glove altogether and spend your energy on something which will turn out better results, with the same amount of labor and whatnot.
also, google: http://www.bing.com/search?setmkt=en-US
ller+glove
i had a P5 setup years ago. it was sort of cool, but more frustrating than anything... but just keep in mind a lot of stuff like that isn't straight standalone and needs a computer. max/msp a lot of times. there are battery-powered MIDI kits available too i believe,
check out the lilypad type of arduino board. its made for e-textile stuff and you'd find some interesting materials/ideas in that community. sparkfun.com has some pretty interesting e-textile things last i looked