I just finished the desktop version, I enjoyed it a lot! The controls are excellent, and the mechanics are really fun (I love how jumping and walls work!) The one thing that frustrated me was that the game really requires you to plan ahead (especially with jumps, where you need to steer in midair so your car will face the direction of the next jump), and you can't see far enough forward to do that without intimately knowing the level layout. I think the game would really benefit from the ability to zoom out the camera.
Overall, really cool game, and I'm excited to see what else you make :)