When the 360 first came out I was expecting tons of faceplats from most games on the 360, well atleast most 1st party games.
Unfortunately I haven't scene any good ones. The only one I really enjoy is my Viva Pinata one. THe others where made my Mad Catz, or Naki. I prefer Microsoft's own 1st party line of faceplates, because the plastic is textured just like the regular 360's skin. I hope they produce more faceplates in the future, but if not then I will surely be disappointed.
On another note I'm currently writting a review to Viva Pinata, and Gears of War. I know it's not soon but it's another opinion, and that's important.