According to Vincent Goodwill, the players have been informed and have begun exchanging goodbyes with their teammates:
Prince and Austin Daye called into coach Frank's office, and the locker room is closed. Could go down shortly. #Pistons— Vincent Goodwill (@vgoodwill) January 30, 2013
Prince and Daye are in the training room, with teammates going in to wish them well. Both are on the phone, 45 mins before gametime #Pistons— Vincent Goodwill (@vgoodwill) January 30, 2013
Jose Calderon, 31, is an eight-year veteran currently averaging 11.1 points and 7.4 assists (1.7 turnovers) in 45 games with the Raptors.
Update: Calderon is making $10.56 million this year -- the final year of his contract. So as nice as it will be to see a true point guard on the court, this deal doesn't necessarily disrupt Detroit's plans of shoehorning Brandon Knight into the "point guard of the future" role.