Apologies if this has already been asked, but I couldn't find a good answer so far. I am planning to buy a 15" MBP next week, but I am still in doubt about one thing: the SSD. I would like to avoid Sandforce based SSD's because of obvious reasons, so the M4 has caught my attention. The problem is: OS X does not support TRIM. Now, compared to the Sandforce chips, the Marvell controller's garbage collection technology is quite inferior. Looking at AnandTech's graphs, without TRIM, performance could drop to 20MB/s and it will only very slowly recover. In my view, this could eventually cause a lot of performance issues with the M4 on Mac OS X, right? Anyone care to comment on this? Thanks in advance.