Excellent... and VERY needed...
Once you start using QuickLook, it's very annoying when you're presented with a file that will not show a preview but an overly enlarged ugly icon insted... This seems to solve this issue for CHM files...
Agreed, it's not a CHM reader, but that's not what it intends to be, I guess... Most CHM documents are hundreds of pages long and I don't think it's practical to read them via QuickLook, even if it's possible one day... Obviously it would be VERY good to be able to browse the pages of the documents but this is a great start indeed...