Short answer: No. Long answer: Noooooooooooooo.
j/p. In all seriousness, it hasn't been ported yet. But I don't think it can/will ever be. It's because the architecture of the two OS's are too different, or at least in regards to the way it locks. However, some of these people can do some pretty amazing things, so I don't know. We have a thread about it
here.
However, moonzbabysh compiled a great list of locking apps, found
here. Thanks moonz. Might want to give one of those a try. Currently, I'm using pocketshield.