It's sad that you're getting downvoted. I was trying this out on my phone and although I had to switch to landscape to make the UI fit, it was buttery smooth!

It's sad that you're getting downvoted. I was trying this out on my phone and although I had to switch to landscape to make the UI fit, it was buttery smooth! I was really impressed with the sheer amount of features included, many of which I have never seen implemented in any other web based editor.