I could look at UX/UI sketches for ages, sometimes I even do - while sketching down own ideas. This wonderful presented overview about your contact recommendations was done by Soxiam, UX Designer at Vimeo.
Nice document(by Nokia) to point out possible interactions on a touch device
The selected topics are considered the most important UI style issues to take into account in touch application development to ensure familiar user experience to the device users.
More information: http://www.forum.nokia.com/info/sw.nokia.com/id/cf2d9a8f-727b-437e-9378-c759ae335624/UX_Checklist_for_Touch.html
