Well I had the 2008 non abs. The rotors felt good until about 15,000 miles. Rotors replaced under warranty. They started feeling bad again before totaling it at 44,000 miles.
I have a 2010 abs. The rotors felt good until around 30,000+ miles. Rotors replaced at 38,200 miles. Bike is smooth as glass now.
I have a 2011 abs. The rotors felt bad at 1200 miles. I brought it to the dealer at about 2800 miles. Kept riding while waiting for parts. Rotors changed out at 5400 miles. Feels great.
Between 2800 miles and 5400 miles this bike was shaking like crazy and the bolts that hold the rear brake mechanism in place came loose. One bolt was gone and the other about 16 rotations loose. I'm pretty sure they are related problems along with horrible tire life. Tires are absolutely toast at 5500 miles and the other 2 bikes went 10,000 easily without tires being this worn.