Not sure if I would use it, but it certainly could be good and I would be glad to help make it better. Have you thought about adding Pokemon lists of who gives what and possible suggesting EV training spots (or maybe the ability to make notes so that someone doesn't forget an EV training spot)?
The idea of having pokemon drop down that would add the EV points was something originally I wanted to do, but that would take a lot of time and I would probably need help or a lot of free time to just get the information.
Notes, I can add. Saving and loading options are ones I'm working on.