For desktop usage you are better off with one 160 GB drive as opposed to raid0 80 GB drives.
Two drives in raid0 will increase your sequential read/write roughly 2x but that really means almost nothing to desktop performance. In addition, raid0 hurts random read/write numbers compared to a single drive especially when using a discrete controller as opposed to onboard.
While I'm sure that this is an incredible drive and the lower price means more people will bite I still feel like buying a SSD today is like trying to catch a falling knife in terms of price. I suspect CES next year will be quite interesting with new drives from most major players with Intel being the likely exception.
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