When I bought my Palm m505 pda I had one problem. What to do with the Palm Portable Keyboard with its Palm V connector. Midwest PCB Designs, Inc. offered the solution with The Universal Bridge: a small adapter between the two devices.
Then, because I kept the adapter unprotected in my bag, it came into contact with some kind of fluid or perhaps some candy and its circuitry got corroded and didn't work anymore. After openening the adapter, scraping the corrosion away with some small tools seemed to help, but although I could use it to sync my m505 via the V cradle, the keyboard still didn't work. Hmpf. But after applying contact spray generously it works again! Yay!
Now I have to find some glue to put the whole thing together and also some kind of case for it, to prevent this from happening again. I tried those cylinder-shaped 35mm film containers, but the adapter is too wide to fit in. Too bad, because otherwise it would be perfect for it. If you have an idea, let me know.