The emulator, by the way, does require Lisa ROMs to function; some older Apple operating systems can be freely downloaded from Apple.com, but I'm not sure if Lisa ROMs are among those.
What has always intrigued me about these very early Apple GUIs, is how little they actually changed over time. If you take a look at the screenshots of the first release of the Lisa Office System, it is instantly recognisable as being an Apple product. It has the global menubar, a few icons with a clear meaning, you name it. Fast forward to today, and Mac OS X 10.4 Tiger has the exact same layout and configuration (for better or worse, that's up to you to decide).
Now, compare this to the difference between screenshots from Windows 1.0 and the recently released (no, really?) Windows Vista. It is a difference of night and day, a difference 395 times as large than that between Lisa and OS X.
Most people won't really care one bit about things like this, but for GUI enthusiasts such as myself, this is extremely intriguing. I can look and compare these screenshots for hours on end.
Sometimes I wonder, do I, like, need medical attention?PS: I will try to get my hands on a (legal!) copy of the Lisa ROMs, so I can dive into this in a little more detail. Stay tuned!.