/\ They certainly are, switched to Bing & loving it. SERP's flipped yesterday, I'm now seeing the data set from a few weeks back that has star ratings appear under the URL's again. Yesterday was the best day of the week too (not hard!).
ETA, SERP's now flipped back again! Star ratings in SERP's gone again. SERP's have changed in a big way as a search I did yesterday had the answer on page 1 result 1, now gone completely (answer was in Google Groups!).