Folks, I just came across the LaCie Little Big Disk Thunderbolt drives in the Apple store by chance. And surprisingly there are two versions -- the 1TB and 2TB disk versions. They will soon add SSD versions in the near future, however this is a welcomed surprise.
From the looks of it, it supports a native RAID0 stripped set by default with 7200 rpm drives delivering an astonishing 250MB/s -- other configurations such as Raid1 are also available according to references. For a consumer oriented drive, these are speeds previously only achieved by expensive and dedicated NAS storage devices with similar raid configuration. If you consider you have two drives in one unit, effectively duplicating the price with a comparably sized external drive, the price no longer feels unreasonable.
To save space and weight, the enclosure houses 2.5" drives rather than the typical 3.5" drives weighing a reasonably light 1.4lbs.
The solid aluminum construction is typical of LaCie's build quality and additionally serves as a heat dissipator for the drive internals.
You will definitely want to have a time machine drive paired up to this speed daemon because unfortunately, the RAID0 effectively halfs the shelf life of the drive as failure of any of the two drives may effectively ruin your data. With today's reliable drives, this is less of a worry, however it's a prudent thing to do as this will surely be the primary working drive housing important data, such as home video's, given it's speed benefits.
The above links are currently returning 404, however when I searched the apple stores again, the SSD version's showed up and very pricy