Is a pity this app is neglected (no blame for dev  whose situation & priorties I can't know) but FCs and stability issues now mar a brilliant concept. Vim is actually a great fit for Android: complete navigation and selection control by word/line/block with just the standard keyboard (no wasted screenspace) & split (particularly diffsplit) are killer features that no other editors come close to. Being able to open additional files without exiting app or fiddling w/ menus is also a big plus (hadn't realized how much using slide out menus or the recent apps menu disrupted my process until now). FCs and associated risk of data loss relegate this to being essentially a demo. Still can't bring myself to uninstall though because I WANT it to work so badly. There are a few other issues: word-based input waits for autocorrect to finish before vim gets any input - so many commands are unworkable & you must watch keyboard's prediction row to see what you've typed. Editing .vimrc and other setup involving home directory was also a bit fiddly (though  if I could figure it out it can't be that bad). Overall Vim on Android is hard to argue with  hopefully updates remedy the outstanding issues.
September 22 2015