In one of the more unusual marketing events, Microsoft is sponsoring the horse Hansen in the Kentucky Derby this Saturday, the only white horse in the field, and is offering punters a chance to win one of two white Nokia Lumia 900 handsets.
To win players need to follow @WindowsPhone, then send them a tweet using the hashtag #TrifectaTweet with the horses you think will be in first, second, and third place. The contest ends Saturday at 5 p.m. Pacific, and you must be a U.S. resident 18 or over to enter. See the official sweepstakes rules for all the details.
Read more at the Windows blog here.