My college laptop (Fujitsu Lifebook P-2046) had a Transmeta Crusoe chip, running at 800 mhz. It was slow as molasses, but could easily do 15 hours of battery life (screen on) with the drive-bay and extended batteries, all in a sub-note form factor. It was a perfect note-taking machine (all of my real dev work was done on desktops or via SSH/telnet). Transmeta may have had a short lifespan, but I think they played a big part in jumpstarting Intel's movement to focus on power consumption (remember, this was the Pentium 4 era).
I was still using my Transmeta-based Sony Vaio Picturebook as a router running FreeBSD up through January 2016. Before that in the early 2000s it made a great, extremely portable hacking laptop. The attention Transmeta got on Slashdot was probably instrumental in my buying it.
Slashdot was definitely instrumental to me buying mine. I never would have heard of Transmeta otherwise, and I found out about the Fujitsu through Transmeta's site.
