The ASF code is available mainly for XMegas and above as far as I can see.
I think that it would be great if AVR could make available code for the more garden variety Megas... perhaps even Tinys as they are not asd tiny as they once were.
I know that here are app notes that provide many examples of code.
The arduino environment provides libraries to access just about any device. You are able to get something going quite quickly. The problem is that there is no debug of any note and everything is hidden.
A similar set of libraries/asf for megas from AVR would be great.
what do you think?