What this does is actually pretty simple, it replaces the string “Apple SSD” (used to identify for which drives trim is turned on) in a file in the relevant kernel extension with zeros. It also creates a backup copy of the original file.
The Trim Enabler you linked to replaces a whole kernel extension (meaning you might end up with an older version of a kernel extension) which is obviously monumentally stupid.
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By the way, do not use that Trim Enabler. If you want to and are aware of the risks, use this one, especially if you plan on using it with Lion: http://digitaldj.net/2011/07/21/trim-enabler-for-lion/
What this does is actually pretty simple, it replaces the string “Apple SSD” (used to identify for which drives trim is turned on) in a file in the relevant kernel extension with zeros. It also creates a backup copy of the original file.
The Trim Enabler you linked to replaces a whole kernel extension (meaning you might end up with an older version of a kernel extension) which is obviously monumentally stupid.