Vader appears in the Samsung Galaxy spots for Japanese mobile carrier Docomo. Debuting last fall, the commercial is part of the "Walk with You" series of commercials that turns celebrities in personified cell phones and previously featured Kaera Kimura and Ken Watanabe.
Even though Darth Vader is supposed to represent the Samsung Galaxy, don't let that squash your dreams of palling around and playing the guitar with him. Vader loves hanging out. That, and chokeholds.