Image quality test results have been added to the Canon TS-E 50mm f/2.8L Tilt-Shift Macro Lens page.
Like the other two TS-E L lenses simultaneously introduced, the Canon TS-E 50mm f/2.8L Tilt-Shift Macro Lens has been hard to find in stock, but Amazon, Beach Camera and eBay have this lens at the moment. Orders are being taken at B&H and Adorama.