With Windows Mobile 6, Microsoft set a skilled handyman to work on the creakier joists of its mobile operating system, but <A HREF="http://www.eweek.com/article2/0,1895,2092834,00.asp?kc=EWWKNEMNL020907EOAD">stopped well short of a gut renovation.</A> The new OS is really more of an honorable Version 5.5 than a true 6--an accumulation of new, useful features that doesn't disturb the operating system's underpinnings or solve some of its deeper problems. The biggest change with Windows Mobile 6, in fact, is probably the names. Say goodbye to Pocket PC and Smartphone. Say hello to Professional, which means former Pocket PC phones, with touch-screens; Standard, which are former Smartphones, without touch-screens; and Classic, for those few remaining touch-screen PDAs without phone capability. Windows Mobile 5 users won't be wowed when they boot up a Windows Mobile 6 device. Devices still take 40 seconds or so to start up, and performance is roughly the same as measured by Spb Benchmark and TCPMP video tests. On the other hand, the new version doesn't break most third-party software; all of the software eWeek tried, including Opera Mobile, Spb Benchmark, Skype, TCPMP and StyleTap, still worked.