Before I have posted apparently a similar thread
http://forums.precentral.net/palm-pr...nches-pre.html

But this one goes ADVANCED. I suggest you to click on: search for user-generated content and you will get this site

Phone Social Search

where you can type your search .I did type TODAY and shows me 3 options SOCIAL STUFF, WIKIPEDIA AND KNOL

Google Custom Search for mobile
Official Google Mobile Blog: Google Custom Search for mobile