The entry-level Nokia 3390 phone, introduced Thursday, is aimed at young adults. It includes personalized screen savers and rings, four new games, mobile text and picture messaging, and changeable front and back covers. Cover colors include polar blue, Himalaya white, Vesuvius red and iceberg gray. The games, such as Space Impact and Snake 2, offer "vibra-shock," which provides physical feedback during a game. Screen savers and rings include college logos and fight songs. The phone also offers voice dialing, a calendar with reminder notes, and a ring tone composer, allowing the owner to personalize the ring.