Although Poisn_xtreamlua said that the previous version of the Danzeff's-OSK-alternative keyboard app was the last version of the homebrew, v4 was released to fix a bug and optimize the code. To top it off, now you can move the keyboard by pressing L.

Here's the changelog for Poison's Keyboard v4 (as translated from French by Google):

* Fixed bug to erase a letter
* Code-optimized
* Optimization of the loading rate
* The keyboard is usable with any library chart
* By pressing L you can move the keyboard