I should probably start by pointing out that you need the Xpose Framework installed to use this! Click here for the Xpose APK and more information about it
I've been looking over the Xpose Framework recently and I've become really impressed with it. So in learning it, I went ahead and corrected a few of the things I didn't like about the stock TouchWiz ROM on our Note 2's. I thought I'd go ahead and share this mod because I think I'm not the only one who prefers google voice search over S-Voice. The best bit, though, is that long-press search is just a regular Intent that any app can answer, so you're not locked down to Google voice search either!
I've attached the HoldHome APK in the post below.
One of the other things I managed to 'correct' via Xpose was that snoopy SysScope app, incidentally. I'm a bit concerned about releasing that one though, for obvious reasons.
Hope you guys find this useful