Right now I use the tiny and portable but quite thorough (9000 characters) 新华小字典 as my simplified character reference (and occasionally it's 大 sister). I use the Far East 3000 Chinese Character Dictionary (远东汉字三千字典) as my traditional character stroke reference. My simplified reference seems like a solid choice, but as far as the second goes, there might very well be something more definitive.
So is Skritter going to have standard reference dictionaries for stroke order? It would be nice to know for sure when a Skritter stroke order is a bug or just varies from the reference work that I've chosen, and if there's a superior reference book for traditional stroke order, I'd love to know about it.