Use always Google mobile web search

In default, google's mobile/pda version of search shows results from "normal" web
and you have to manually select the "mobile web" option.
In low-resource machine it may be more practical to search from mobile web by default:

 

http://www.google.com/m/search?&q=&site=mobile

 

Simply added URL above to my bookmarks and now i can search directly from mobile web.