I've seen some, but not a lot.

 

Update: I got the seats and the backrest on and finally had a chance to take some pics. Sorry not the best pics since it is still March here in the northeast, cold and rainy. In fact I have only ridden the bike once with the new seat on (and then only the rider seat to get home from the dealer after winter storage), so I cannot really provide a thorough review. There is, however, definitely a noticeable improvement over stock and I have no doubt I did not waste any money

 

I am a huge fan of green. Looks great!