[quote name='Doomed']Did you see the link in my post above?
wikipedia.org/wiki/List_of_portable_software
Internet: Firefox 3 beta 5 portable. Don't let "beta" scare you. I haven't had any problems. Not a HUGE RAM hog like FF2. If "beta" does scare you, non-beta out in June.
Light word processing: AbiWord portable. Can open .doc and save in .doc as well. Don't expect perfect .doc handling since it's third party, but should be good enough for text+light formatting like tables, colors, fonts etc.
Instant messaging: Pidgin portable. IM with a
shitload of formats.
---^all of the above are on the portableapps.com website^---
Damn Small Linux embedded: For shits and giggles mostly. Complete OS you can run within windows. Just plug in USB drive and run a file. Kinda useless but has a coolness factor.
^You can go with bigger OSs but DSL is Damn Small (50MB) and would fit on almost anything.
Security and encryption
^Never used any of these, can't say how good they are.
Also, by Googling around I found other people's suggestions. Don't remember any off of the top of my head, but some sounded cool.[/QUOTE]
Sorry, I didn't mean to gloss over that...I was trying to steer the conversation away from ROMs and emulation.
I did see your link, and I'm happily surprised that this is covered so thoroughly in Wikipedia!

A lot of those apps are already supported in PortableApps, so that seems to be the overwhelming loader-of-choice.
That CPU-Z looks great too!
Thanks!