The Mobile Serps

I’ve been playing around with mobile sites looking at coding best practices and SEO. I am curious if anyone knows how the SERP listings are built in Google or Yahoo?

I have seen listings that appear to use the defined meta title but built the description from a myriad of places. Some are using page content and dismissing the defined meta description. Some are using the traditional web version of metadata and placing those on the mobi site. Some are using inbound links or even listings in mobile directories.

It even seems that there may be an issue when updating and caching that defines what metadata is used. I’d appreciate anyone’s view or educated guess on this matter.

Thank you!

CaliGirl