At this moment it's only available for Android phones and tablets. Maybe in a future will be ported to iPhone, Windows or GNU/Linux, no promises though!
2. Will be Everland supported on OUYA?
The short answer is yes. I'll add OUYA support (for the gamepad) when the device will be available. Estimated release date: April-May 2013. I keep an eye on this Android console, so it's very possible all my games will support OUYA in a future.
3. I can't see the game on Android market, why?
You need at least to run Android version 2.3 on your mobile or tablet to see the game on Android market. Also a phone/tablet with ARMv7, OpenGL ES 2.0 and 512 MB of RAM at least is recommended.
4. Can I adjust touch sensivity?
Of course! While you're playing touch the icon tool on top-right of screen, then select "Options" and simply set your desired touch sensitivity. Will be automatically saved for next time.
5. How many people developed Everland?
Only one! Everland it's an indie game. I'm developer and I took all the roles of game development on this project, specially programming. I bought some 3D art and music when my pocket allowed!