I'm really not happy with the current situation of web design. Especially the "looks great on every screen AND device" part. To create a truly responsive Design you have to incorporate Orientation, Width, Height, Pixel density and much more. (which usually nobody bothers with since this would be way to complicated) People are using only subsets of these, so the sites often break on different devices, etc.

Then there's the problem with the content. Mobile users won't necessarily need all the things Desktop users do, since they usually have a very clear picture of what they want to do on the site. There needs to be an easy server-side implementation for such things. (would love to hear about it if someone knows any related projects)

PS: Please allow your users do "default" to a standard-version. I've seen so many sites break on mobile phones, making them completely useless...