Hummingbird and wpTouch mobile sites & Infinity Cache

Hi,

How does hummingbird interact with wpTouch mobile sites? Does it perform same functions that are enabled and working on the WP desktop site?

And also wpTouch has an extension called Infinity cache for a mobile/wpTouch site. I've enabled this to see how everything works. Any thoughts on Hummingbird & Infinity Cache?

http://www.wptouch.com/bravenewcode/infinity-cache-wordpress-cache/

Thanks.