With the addition of all the other apps provided, Terminal IDE becomes much MUCH more than an extremely powerful IDE. Also vim has been setup by default in a humane way (arrow keys work, backspace.), so that starting on this long and glorious journey won't begin with a punch in the face. The vim editor has been setup with c / java / HTML development in mind and is extremely powerful. GCC 4.4.0, make 3.82, ctags, javac, java, dx, proguard, aapt, apkbuilder, signer, ssh, sshd, telnetd, bash 4.2, busybox 1.19.2, vim 7.3, nano 2.2.6, midnight commander 4.8, htop 1.0, TMUX 1.5, links 2.7, rsync 3.0.8, git 1.7.8, BitchX 1.1 and a nice terminal emulator are all available. and also has an extensive generic external 'hard' keyboard key mapper. It uses the command line, with many powerful and robust open-source applications, plus a custom ASCII on-screen 'soft' keyboard that works well (You must ENABLE it in your device's main Keyboard Settings).

Terminal IDE is an expandable terminal application, with a full Java / C / C++ / HTML / Android development kit, that runs on your Android device. ** ( Sorry - but new PIE restrictions break everything in later versions ) **

** INCOMPATIBLE WITH ANDROID 5.0 LOLLIPOP AND VERSIONS PAST THAT **

Description of Terminal IDE (from google play)