Guys, stop making this topic into a place where you say "Scratch on" and then list some random device less than a fraction of us use.
The Scratch Team doesn't have time to port Scratch to every device you want, unless they were immortal, and you were too. But they're not.
Just use your computer for Scratch, and if that's too hard for you to do, get out a piece of paper and write your ideas down. Are you really going to be dragging and dropping blocks on a 4" screen while sending neurotoxins to your brain in the car?
Won't you need adobe flash player or something to work with it?