Never tried to wake computer from sleep with trackpad. As for display sleep, at the risk of getting nit-picky, a swipe trackpad to wake from sleep used to work regularly, whereas now only a tap works if the display has been to sleep for longer than 10 seconds. The horror! Tho must admit to some minor change-aversion until I figured it out.
That, and SMB file sharing on ATV with XBMC didn't work. Running a Playback server in the background for $15 to allow UPnP streaming fixed flawlessly for now. Major change-aversion here, tho the fix was simple enough.