alt Hacker Newsit's okay to want to be paid for effort.
if one doesn't want to pay, one can use 32 bit (with all that entails, which, really, isn't much on the sort of machine you'd want to boot from floppy); if one wants 64 bit, one can pay?
i don't see a problem.
The license says it's free for personal or educational use. The only real restrictions prohibit commercial use, redistributing, reverse engineering, disassembling, and decompiling without permission. While that is a a lot less restrictive than most licenses, most of those restrictions are also rather curious. It pretty much negates the value of the software as an educational tool, reducing it to a technology demo.