Hey,
First post on arduino forums! 
I just brought my Arduino ADK (Mega 2650?) and its due to arrive on tuesday, im excited to the extent of no words
Anyways, im just learning coding and im due to submit a project for a competition on friday
Help me, I have a doubt. 
A Touchless 3D Tracking Interface - Make: Can I use this to turn it into a game controller? I already saw a video on youtube :
(Basic Arduino to Unity tutorial - YouTube)
About unity 3d and arduino UNO, but unfortunately im gonna get a USB so i suppose that wont work for me? (Maybe fortunately too, im also planning on trying to use it for android input)
Im really exited
Plz help me:
Can i use it as an input device via USB for windows and android?
What are the game engines i can use it through? (If it could be done) - I'm a bit good with Cryengine and Shiva3D. Is it just unity? (If so I should learn it 
)
Thanks in advance.... plz help a noob
Okay I've done some more research and settled on uniduino.... is it okay? Worth it? Is there a free alternative? Easy to learn?