21 March 2001 By The Morning News — 21 Mar 2001 Salon begins to charge for "premium" content: more stories and no ads.New Pepsi ad, with Britney Spears, will have a sneaky preview on Yahoo.All New Yorkers have cell phones, and hate themselves for it; now they're scared they'll start using them on the subway.Restaurant busboy fleeces celebrities with a library card.Mexico's new Fox makes first official U.S. visit: to Silicon Valley, not D.C..Xpedior will lay off 300 (42%); calls its own stock "worthless."A cool breakdown of a Visor's anatomy.OSX is ready to roll, after seven years of "feature creep."Gameboy Advance debuts in Japan; U.S. rollout this summer.Illegal in its prime: prime number, written in base 16, can decrypt DVDs.Mike is right: Design Object looks like a lovely way to shop.Steve Martin is a crappy writer who gets good reviews because he was funny and published because he's famous.Voxus has very nice pictures.