Just for a bit of fun, here are some screenshots of HTML³ running on various desktops.
HTML³ is designed to work on pretty much any RISC OS machine. It's been tested on various RiscPCs and an A310 with RISC OS 3.1, ARM 3, 4MB, and a 100MB HDD. As long as it has enough memory to load (and load a text editor), and has 1. outline fonts, 2. can handle the colour picker module, and 3. has PipeFS then it should work - so, a RISC OS 3+ machine so long as it's got at least 2MB, but sensibly 4MB.
RISC OS 3
RISC OS 4 (Clear theme)
Note that HTML³ isn't a native Windows program, but using an emulator such as VirtualA5000 you can use your Windows laptop for sensible HTML editing :) Thanks to Chris Edwards for the screenshots.
Got a screenshot you want to submit (the more obscure the OS or weird the desktop the better)? email firstname.lastname@example.org!