The latest smart phones running Microsoft and Palm operating systems are getting some fresh competition from Nokia, the leading handsetmaker. Smaller than a handheld computer but bigger than an ordinary cell phone, the new 6620 will let you check your e-mail, send digital photos and access the Web. Users in the U.S. can connect to a GSM data network from AT&T that is capable of speeds of up to 100 kbps, about twice as fast as some other Web-enabled phones. Bundled applications include the Real One video player and MightyPhone synching software for keeping your contacts and appointments up-to-date. The phone also supports more than 70 business applications designed for the Symbian operating system used on the 6620, and allows for customized features, including word processing, expense reporting, document management and more.