fair points...that was just the first thing that came to my mind. Better might be something along the lines of: LibreMobile
Of course you don't want too definitive to limit your options. But what I'm criticizing is things like "Cyanogenmod" (what does green-blue have to do with it? is is some type of element?) or "Android" (is it a robot?). Apple won a lot of users simply with a simple definitive name "iPhone". And you can have definitive names that leave options open, e.g. "YouTube" or "The FaceBook".
So it doesn't work on tablets?
Is it open to hackers?
What's an OS?
There's a reason Amazon isn't called "books.com" - definitive names rarely make for good brands. They limit your options and can carry preconceptions.