Actress Paris Hilton, second left, arrives with a few friends for the Los Angles party to launch T-Mobile's Sidekick 3 Tuesday, June 20, 2006. The guest list was a virtual who's who of Hollywood's young stars.
"Desperate Housewives" star Eva Longoria is photographed on the red carpet at the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. The party featured performances by the Futureheads and She Wants Revenge and spinning by DJ AM.
Actress Hilary Duff, right, and her sister, Haylie Duff, pose with actor Efren Ramirez, center, as the trio arrive for the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
Actress Jessica Simpson, left, watches as Eva Longoria poses for photographers while arriving for the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. Simpson and Longoria arrived at the shindig together.
Actress Jaime King was among the guests at the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. Stars got to use the device first; it won't be available to the public until July 10.
Actress and singer Jessica Simpson poses for photographers while arriving for the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
Actress Janice Dickinson holds court at the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
The singer Brandy Norwood arrives for the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. The guest list also included Joaquin Phoenix, Taryn Manning, Shane West and Kristin Cavallari.
Actress Hilary Duff, right, and her sister, Haylie Duff, pose together at the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. The party had a playground theme and was furnished with swings and slides.
Actor Adam Brody attends the party at the Hollywood Palladium on June 20, 2006, for the launch of T-Mobile Sidekick 3 in Los Angeles.
Actress Rachel Bilson of "The O.C." and "That 70s Show" arrives for the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. The latest version of the Sidekick will be available first to T-Mobile customers.
Cuban-born swimsuit model and actress Vida Guerra, arrives for the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. She has appeared on the "Chappelle Show."
Actress Jessica Simpson poses for photographers on the red carpet at the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
Actress, singer and socialite Paris Hilton arrives for the Sidekick 3 launch party, sponsored by T-Mobile and Danger, in Los Angeles, Tuesday, June 20, 2006. Hilton is familiar with the electronic device; it was her Sidekick cell phone that reportedly made headlines when it got hacked last year.
Having Paris Hilton as a fellow guest didn't daunt actress-singer Nicole Richie at the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006. The two stars, once close friends, are reportedly in the middle of a bitter feud.
The British-born star of "The O.C.," actress Mischa Barton, walks the red carpet at the the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
Actress and recording star Christina Milian arrives for the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
Actor Malcolm-Jamal Warner shows off a Sidekick 3 at the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
Actor Nick Cannon, dressed as the TV character "Urkel" attends the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.
Actress Mischa Barton, left, talks with actress Nicole Richie as the pair attends the T-Mobile Sidekick 3 launch party in Los Angeles, Tuesday, June 20, 2006.