In an ideal world yes, we could just have static layouts for each device - but I think it's a lot of tooling to do, and I'm not sure most app developers would be interested in trying to develop a layout for a second (or even third) device that they don't have...
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
In an ideal world yes, we could just have static layouts for each device - but I think it's a lot of tooling to do, and I'm not sure most app developers would be interested in trying to develop a layout for a second (or even third) device that they don't have...