Take a look at http://osx.iusethis.com/app/ichm .

take a look at http://osx.iusethis.com/app/archmock , it seems much better then this out dated reader

where's the word wrap function?

Looks good and is fast, but no searching. It's pretty much useless to me without searching.

I got a book about XCode as chm (sic!), so it's a great app and actually much better than microsofts chm viewer

Just great to do distant help for friends and family who use Win. I took the help files for their applications and simply have to visualise them with Chmox. As well, search and / or bookmarks would be great.

I really wish this program had bookmarks or a way to save favorites. Other than that, it's faster than most of the other alternatives I've tried. I hope development continues.

You may also want to check out Chamonix as an alternative which includes bookmarks but is ugly.