I know this is not really the place to have such an answer, but
this question (and its assumed negative answer by many new users)
is so frequently associated with users switching back to KDE or whatever
that I felt like giving some visibility to the correct answer would
do some good.
- header graphics scales (within limits)
- width of text area is determied by css, now 90% instead of 880px
- more of the html code goes in included templates