Does Lion have TRIM capabilities?

I have a 2010 macbook pro. I did not choose the SSD option when i bought it, but later had one professionally installed. I was just curious whether or not lion has TRIM on it, which helps increase the performance/life of an SSD (solid state hard drive). I remember reading somewhere that people thought it would have TRIM just for macbooks which has SSD's installed in the factory, but not for aftermarket installations (like mine). Is this the case? If not, will some future Lion upgrade have optional TRIM capabilities for every macbook?

Edit:
Tested the groth patch and it still work in Lion as well...
(and the disk is very much third-party )

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