Anyone know why larger SSDs are not appearing? I know OWC have a larger one but this seems to be the only one and it's off the slower type and I would have to import it to England so it would be really expensive. It seems like 500gig SSDs have been out for ages now! I don't know exactly how long but it must be more than a year. I really want something larger (about 700gigs) so I'm holding out but i've been holding out now for a about a month thinking one is going to appear any day but nothing!! Anyone any news, ideas, thoughts?