It probably wouldn't have the correct drivers and stuff for Dell-specific features.I guessed wrong. There is absolutely no software shipped. I've got an older PPC2002 disk that shipped with a Toshiba PDA that I have. Would that work to reinstall if needed?
You shouldn't have to reinstall the OS anyway - should you? You might be able to purchase the CD from Dell - it may not be cheap though because I think the latest version of Outlook is included.