Link is down, but if it's what I think, it's not really that useful. I played with something like that years ago, and more recently tried using it for reading o

Link is down, but if it's what I think, it's not really that useful. I played with something like that years ago, and more recently tried using it for reading on my phone, and the limitations are: 1) Compared to classic reading, you can't stop or go back easily. For some uses I suppose it's ok, but most times you want to pause during reading to think a bit about what you just read, or simply rest for a coupe of seconds, and this way you can't. 2) For mobile phones it's useful, but simply not as pleasant. I expected to get a headache which didn't materialize, but still didn't enjoy it as much.