All done ...nearly!
We hope to publish an full version of Linearity in the next couple days. If we can fix one performance issue easily, we will go public soon.
Please report every bug you find. Feel free to give us some feedback. We would appreciate feedback by using our contact form. A direct store recommendation, if bad, could have massive effect on Linearity. So please be gracious!
As soon as it's online you will be able to download Lineaity as any other app from the Play Store.