I too would love to see an Android port with the ability to easy package both game and your RPG file into one nice APK file for easy market distribution.
There are some RPGs on the market, but all the good ones are all pay-for ones. I'm sure OHR was compiled for Android or even iOS(although Apple store will not allow, as it's technically a VM/Engine, but never know), plenty of hardcore RPG gamers would download them to try them out, if they like the game, well, it's word of mouth from there on to make your new shiny game seen by millions on the App Store.
There are alot of quality games in the OHR community that many hardcore RPG gamers would love to play, but just don't really know about. Indie games are making a huge impact these days on many hardcore players. People are caring less that's it's Square Enix and more for the actual gameplay and price of the product.
On that note, the SDL libraries do work on Android, and this may or may not make it easier to re-build the engine for that platform. FreeBASIC really needs to make new build targets or just compile directly to C code or something to then compile on whichever C compiler the user wants to target.
Android does have DosBox, but the DOS port of OHR is widely unused.

Or this would work perfectly with phones with full-querty keyboards.