I love this program, it's so easy to work with. The only thing I can think of that I'd like to see in a future version is more dice-templates, like D3, D24, D30 and D60 and also the more odd shapes like D5, D7 and D16.
And d2’s! Though it kind of already does that -
Apologies for stating the obvious, but for anyone that didn’t think of it, d2 and d3 are pretty easy to do by repeating sides on any polyhedron divisible by that number.
Another aside - a d14 cuboctahedron is also cool. :)