To my knowledge, Macally has not shipped a single unit of this product. I called them personally last Thursday, prior to the 3G's launch specifically to find out if they're out there in the wild and they were most definitely not.
I look at it this way: The Belkin Grip Vue is a proven product, probably 300,000 being used this very moment, they're available in multiple colors at every Apple Store in America, and it's simply not worth the $24 to take a chance on a Macally product that no one has ever used.
Stop stressing over $24. That's a movie and some popcorn. The iPad will last you 3+ years. Get the Belkin and move on.
BJ