Have you tried Atom?(vim user here btw :p ) PowerBall? Why not GNU Octave? Yeah, my shield has the Tegra K1. I looks good on benchmarks but horrible with japanese mobile games... I can't event get a stable 30 FPS on iM@S and it gets pretty hot. I just passed the 12-hr mark on my iPhone SE and it's now at 79% battery, pretty impressive IMO.