Voice Search app/add-on to search within any app?

[ireknole]

I'm coming from the Epic 4g (not the touch), which had a dedicated hardware search button. I used this constantly when I was driving to change music in Player Pro so I didn't have to look down. Is there an app/addon that does this? I know the phone has google voice search, but I have to find the search option in Player Pro first, which is distracting. I would rather just press a button or launch an add-on (I'm using swipe pad, so I can access it from the app), so that I can access the search feature from within an app immediately.