Hacker’s Keyboard is one of the most convenient keyboards for Android tablets. She has a five-series layout, if you wish it can be transformed into a four-row mode. Well thought out fast entry. The keyboard is familiar to us buttons Tab, Ctrl, Esc, Alt. Each of them has an activity light that can work in 3 modes: on input a single character, turned off, turned on permanently. An easy way to switch languages will make you happy. The feature I think is that for Russian-speaking users, you can display the keys with Russian and English letters.