Android TabE Lite
This is a paperback-sized, but cell-phone thin Android device which will run the port of OpenCPN navigation software as well as any other Android thingamabobs that you want. I bought it on ebay and after futzing with it and my g-mail account I lost what little patience I still have with anything that says "Google" on it. I restored it to the factory settings instead of chucking it out the window.
This thing has been charged, sat on my desk for two days and had my fingerprints on it for about three hours. I even wiped the fingerprints off. It was $65 on ebay. I'll sell it for $40. The thing really is the ideal size to have as an in-cockpit charting device, it's just that I have developed a rabid hatred of all things Google.
1968 Selmer Series 9 B-flat and A clarinets
1962 Buesher "Aristocrat" tenor saxophone
Piper One Design 24, Hull #35; "Alpha"