All the hype of “convergence” is finally paying off with the new Sidekick from T-Mobile. It’s a totally wireless way to make calls, e-mail and instant message, surf the Web, and even take digital pictures. With a full keyboard and high-resolution LCD swivel-screen, the 5-ounce hand-held also has a built-in speaker, wireless connection to Web portals, and PDA functions, all for only $200. Find more great gadgets at