Congrats to the cryptographers of Keccak for winning NIST's SHA-3 competition.
The short SHA-3 Selection Announcement is worth the read.
I've already been asked the following question:
Q: When will SHA-3 be an approved security function for FIPS 140-2 cryptographic modules?
The answer is easy, but I do not know the date:
A: As soon as it is included in Annex A: Approved Security Functions for FIPS 140-2
Additional info: Wiki on SHA-3 NIST hash function competition