I bought my MBP back in Nov, so I didn't have a chance to upgrade to a 256GB ssd. However, the Cosair drive that came out recently seems to be a rebranded version of the Samsung P256 SSD (which is ostensibly the best 256GB SSD there is). However, how does this actually perform (e.g. against x-25 or other 256gb models?); are there any obvious drawbacks?; and will there be any new products coming out soon (I know updates are inevitable, but how soon)? Thanks!