Microsoft CEO Steve Ballmer appeared on NBC's Today Show on Thursday to shill his company's Vista service pack, er, "Windows 7" and spent the entire segment in front of an older model (note the latches above the screen) Apple MacBook Pro (courtesy of an NBC graphic designer — Mac user, no doubt — who must have a wicked sense of humor): Direct link to video via Hulu here. Of course, it's easy to run Windows 7 (or any other Windows version, Linux, etc.) and non-Mac applications on OS-unlimited Macs natively (via Apple's Boot Camp) and/or via fast virtualization (VMWare Fusion,...