With the amount of devices becoming available with different screen sizes and resolutions it would be very cool to be able to define the screen size instead of picking a device template. This way it will be much easier to support a much wider range of devices such as the new BB 10 and kindle fire HD tablets.
I’m not a web expert but but it also would be a really cool if you could define an main body div size so it can be viewed better in chrome browser on a PC. With laptops becoming tablet and Pc’s, cross application development is becoming the norm. It also make fast prototyping of designs and letting clients view designs a lot easier.
First question i get asked is can i view the app on a pc. The answer is yes you can but you have to manually resize the browser to roughly IPAD size which is a little of a faff.
thanks
Paul