This is pretty awesome; why isn't it linked in your sig yet? :P
This will probably kill the wi-fi forum, but it honestly doesn't matter much, at least to me. I'll probably just start using my Pokesav'd stuff with missing trash bytes and incorrect PIDs again.
Well I suppose (as you asked for suggestions) that extra pieces of output detailing Hidden Power, whether the Pokemon gets Ability 1 or 2, and whereabouts in the gender distribution the Pokemon lies, would be useful additions.
In combination with Shoddy Battle (to find a legal IV/nature combination for a particular Hidden Power) and Pokesav (to find out what gender/ability slot a certain PID will produce), you can find these already. Although, any legend that you would need a PID for only has one ability regardless of which "class" is picked, and only Heatran has a gender, which is totally inconsequential in battle for anything other than the never-used Attract.
Are there plans to release an offline version of this program?