I read news that Samsung is already coming out with 256 GB SSD drives. I'm imagining that Apple will start putting those into the Air mid next year, and wonder what are my chances of being able to replace the 128 GB SSD drive (this is assuming I purchase an Air in the next few weeks) myself when the new ones come out? I remember there have been some threads related to swapping drives on this forum in the past, but none dedicated to those new 256 GB SSD drives, as far as I can tell.