USB 2.0 Host Shield Library

I would like to try one of these USB 2.0 Host Shields that are available on the market nowadays, but I can't find a library to use with it. Has anyone here knowledge of such a library that we can depend on?

but I can't find a library to use with it.

Strange. I copied your thread title, and pasted it into Google. 538,000 hits.

See here http://forum.arduino.cc/index.php?PHPSESSID=6lhq9otuq5k7s1au9ed6qf1kd7&topic=73735.0