It's not built it but try Scout (doesn't do application launching). The same developer also created a widget that if clicked on allows you to search for apps. He doesn't wish to integrate the Widget and Scout together.
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Originally Posted by ysss
They're maemo and MeeGo...
"Meamo!" sounds like what Zorro would say to catherine zeta jones... after she slaps him for looking at her dirtily...
There should be a built in search like that on the Palm Pre in Web OS.