I've heard alot about the Raspberry... ill look into it. And I have ever only used backtrack and mandriva, because I've always used standard not really mobile computers, are there any other OS's built specifically for mobility rigs like this?
Edit:
looked at the Pi. Holy crap thats awesome. It isnt what I need, but now I'm getting one anyways for $35 bucks. I need something small and compact too (the Pi is very small, but you need to bring a keyboard and a monitor, a small tv by the looks of it), I'd like to just pull it out of my bag and make a quick note, then take it out an hour later and perform a WEP crack and a metasploit pentest. So I guess I need still a default laptop design, as much as I love the SoC design. Thanks for the suggestions though.