Basically I need a portable development enviroment that can be used with OSX, Linux and Windows. Windows could be bypassed by putting a bootable minimal live distribution on the drive, but then I could find myself on a box that can't boot from a usb drive (I have two of them at home :)).
I was thinking about
- Reference Documentation: Pickaxe2 PDF (that you too should buy!), rails doumentation, who knows what else
- An editor for each platform: TextMate (Mac), and don't know what to use on win/linux
- Ruby in its various forms
- Everything else. Obviously I don't know or I wouldn't have asked :)
Keep in mind that 1GB should be enough for every ruby developer so suggest everything you have in mind.