Business users whose lives revolve around their mobile phones won’t be disappointed with Samsung’s Intrepid smartphone. The handset, which uses Sprint’s 3G network domestically and also connects to 3G networks abroad, is packed with features aimed at the pinstripe crowd. Intrepid runs under the latest version of Microsoft’s cellphone operating system, Windows Mobile 6.5 Professional. One improvement in this edition of Windows Mobile is a customizable Today screen.