. >> rose: her new book, "lacombe anima/persona" gathers 192 images spanning her career. she says these collects moments are my life, i'm pleased to have brigitte lacombe at this table for the first time. so great to see you. now let me just talk a little bit about this. this is going to be easy. we're just going to look at your work. a span of your lifetime. first of all, the book is dedicated simply to your friends. >> yes. >> rose: why that dedication? because these people are your friends? >> no, no, no. not all. (laughs) not all of them. but a few of them. a few of them. and that's a... i have two things, i have my work and my friends, really. and sometimes they actually are the same thing. >> rose: this introduction is written by frank rich who says "there is art and there is show biz and a young century overdosing on celebrity exploitation masquerading as photojournalism. it's essential to keep the boundaries distinct. that's the key to appreciating photographer brigitte lacombe whose work takes her into the realm of show business but whose pictures strip the comme

"lacombe anima/persona." >> rose: samaltman is here he is the found of loopt a mobile networkin applicatio which allows urs to locate friends on their network. he came up with the ia while a sophomore at stanford. today lot has overone million ers, major u. carers including spri, at&t and rizon all offer the service. loopt is another example of how people now use their cell phone for re than just to talk. i am pleased to have samltman this table for t first time. welcome. >>hank you, charlie. >> rose: what isoopt about an y is itimportant? >> loopt is abt peoplesing their cellhones to conct to the world around them the importance o cell phone technology in our ves has really taken off in a way i thk few of usver predicted. the average u.s. teenager sends almost 2,000 text messages per month. the dependence on this device and how engrained this s become in our ves is incredible. e of the unique things about these deces that hasn't exted in the web wod is that they kw where they are. they have this location technology and if u want you can share your lotion with other people. you can nd grea