Name the new version
Leitor. It's "reader" in Portuguese (disclaimer: I don't know Portuguese language, Google Translate does).
Rationale: most code is written in Lua, which is an Portuguese word. Simplicity and power of Lua is helpful enough to recognize its role in a form of Portuguese naming.
Leitor is also generic and distinctive at the same time (quick googling finds
Leitor Neo and
Leitor Vivo Android programs, but no program with plain
Leitor name). See also
Leitor de livros digitais at Wikipedia.