The Story Prize winner is Tobias Wolff.
I learned about it from the National Post's book blog, The Afterword.
I've only read a few stories by Wolff and I enjoyed them. I guess this would be a good occasion to buy his latest story collection (or put it on hold at the library) and read some more.
The runners up were Jhumpa Lahiri (whose work is fabulous) and Joe Meno (whose work I have not read).