Panther: Multiple Graphical Logins?

[MacRumors]

MacOSRumors reports that the next major revision of Mac OS X may supply a frequently requested feature:

Panther, the new version of OS X that will be previewed at WWDC in June, may well be the first version of Apple's modern operating system that allows multiple simultaneous graphical user logins.

Presently, only one user may be logged into Mac OS X under a graphical user interface. This feature could be used in rumored "thin clients" such as the rumored Tablet Mac -- providing remote login and use.