Um, paper charts died a year or two ago. The easiest way to have current charts is via an EFB. You could ironman it and download the TIFF files of the charts that that FAA publishes.... but why?
The first company to release an IFR certified tablet to replace the panel mount GPS will win all the money. RIght now (if you believe them) the reason is that tablet OBS is not sensitive enough on an ipad.... yet the screen resolution of an ipad is much higher than any panel mount GPS. The real reason is that the Garmin ecosystem has millions of dollars invested into hardware and to throw that away for a $500 (or even $1000) tablet would be financial disaster for the company. A brand new $20k GPS has a laughably bad warranty for an obscenely short time. I'd like to see the repair revenue they generate.