I'm pretty sure the "universal" they are talking about refers to programs designed to run on the Intel Mac platform, meaning Mac OS programs that are actually designed for intel processors and not the old power pc processors. As far as running windows programs, the Mac "Boot Camp" program lets you install Windows XP as an operating system you can boot into instead of Mac OS, so theoretically anything that runs on a PC will run on the Mac while you are in Windows. I don't have one of the new macs, so I haven't tried it myself but from what I have seen it works just as well as running windows on a PC
