PDA software

I just got a job at Audio Express here in Albuquerque so I am still learning, Is there any software out there for the PDA that could help me out with things? I have a Zire 71 just sitting around that I don't use anymore. Thank you for the help.

I have tone generator software on mine that I use for setting up crossovers and testing amps. its called ToneGen you can get it at www.nch.com.au/tonegen. also depending on what software you use to get wiring diagrams you can save them as document files and keep them on your PDA for future reference. I have a Tungsten T5. Although I thought about switching to a pocket PC dunno yet.. They also make diagnostics software for the palm OS. It allows you to scan vehicle computer systems and clear out trouble codes wich comes in handy if you ever trip a code and cant get it to clear by removing the neg battery cable.. Take a look at Brighthand its a web forum where you can find TONS of software for your handhelds