And modern software that behaves respectfully, I'd expect, especially if it's doing something that my 100Mhz Pentium w/ 64MB (with an M) of memory used to manag

And modern software that behaves respectfully, I'd expect, especially if it's doing something that my 100Mhz Pentium w/ 64MB (with an M) of memory used to manage just fine (graphical email client). With the bonus that newer machines can run more such programs at once, and enjoy longer battery life.