"I actually suspect now that making the app iPad only is just to get more attention for 37Signals. There isn't a compelling technical reason for doing that othe

"I actually suspect now that making the app iPad only is just to get more attention for 37Signals. There isn't a compelling technical reason for doing that other than marketing ploy." Cynical. There's no ploy here, there's no big picture plan here re: releasing this just for the iPad. It was just easier. For a proof of concept, easy was the goal. A couple of guys spent a few days messing around and this is what came out. We're really happy with it so we figured we'd share it with everyone else too. We just went with the iPad because it was a lot easier to build it for a specific use case. We knew the exact dimensions, for example. We didn't have to think about how it would scale if the browser was wider or narrower. We could put everything exactly where we wanted it. It just works all the time since the iPad browser size is the same all the time. We also didn't think it would be that fun to use with a mouse. Finger painting is more fun.