Nope not yet until it's been properly tested by the public and M$ come out with it's first patch, then it will be a serious consideration. Although we don't have enough time to complete current projects so finding time to "have a play" is a bit difficult at the moment ;)

I must say though that I few people who I know who have always been php 110% have said they really like the look of ASP.net which is quite surprising.