In addition to my own modules, I've used it on Perl::Critic and PPI and (aside from Adam Kennedy's weird Aussie spelling!) and it worked great. That's about 29,000 lines of well-documented code -- I'm not sure if you consider that large or not. Perl::Critic currently has 29 stopwords not included in aspell-en.
Not all of my weird spelling is because it's aussie english :/
But I'll note that I only use local english for the comments and docs, all the APIs should be american (sigh). Including one method Chris found in PPI that I got wrong. Fortunately it's only a minor method.
That said, if anyone wanted to make the spell checker handle more than just american spelling, a good place to start would be Lingua::EN::VarCon, which provides all the english dialect data.
One could use that to deal with the language conversion, or to factor out the localised words.
Adam K
