For some people who are getting “Trim is enabled, but not working” message under 10.7.4 or Mountain Lion, I am working on a fix, it doesnt seem to be anything else then a hiccup that occurs for a few users with the slider element. Will probably release an update next week or so.
Also, I’ve had a change to look into why some drives won’t give correct S.M.A.R.T values (questionmark, or “Unavailable”). It is simply because a portion of hard drives, and SSD,s simply are not given this feature by the manufacturer. You will see the same result using say, S.M.A.R.T tools under Windows. Sorry!