Not out yet, but they are coming. Planet Bike told me that they are going to be making a full 29er fender in '06.
In the mean time, I am having good luck w/ their widest 26" fender w/ their longer stays. A little short in the back, but they get the job done. I have used them over WTB 44c Mutanos and Big Apple 2.0's w/ room to spare.
I'm looking forward to the 29er version also though.
LP