This is a custom filter for the offseason app, I think the animation is self-explainatory. I'll be working on a few more animation from this app in the following weeks.
Full Size:http://dribbble.com/shots/1153197-iPhone-custom-search-filter/attachments/149195
Hi-Res Animation: http://dribbble.com/shots/1153197-iPhone-custom-search-filter/attachments/149196