Frandsen nearly signed with Arizona after the Padres released him, but the deal with the D'Backs fell through. He'll provide the Phillies with depth behind Wilson Valdez, the newly-acquired Luis Castillo and the injured Chase Utley. Jon Heyman of SI.com reported earlier today that Castillo appears likely to start the season at second while Utley recovers (Twitter link).
Frandsen, 28, has big league experience at third, short, first and both corner outfield positions, but he has played more games at second than at any other position. He hit .250/.294/.319 in 173 plate appearances for the Angels last year.