If anything, Joseph is the new Heath. (Not that there could truly be another Heath.)
I saw the title of this thread and before I read any posts the above quote is *exactly* what I was thinking.
JGL looks very alike Heath in some images.
The weird thing is they don't look alike at all (IMO) in
10 Things I Hate About You.
I like JGL a lot, and I think acting-wise he's got the courageous/quirky/outside-the-box thing going that makes him quite similar to Heath too - I'm looking very much forward to 500 Days of Summer - whenever that one reaches my shores....