Can I suggest you take a look at Cuis Smalltalk (a simplified fork from squeak), and any of the talks given by Juan Vuletich (main author of cuis). In Cuis, Juan took morphic back to basics and updated it heavily. Now submorphs use relative geometry (not absolute), and everything is hardware accelerated vector graphics - EVEN THE FONTS.

Seriously, reading Unicode enhanced code in a 45 degree tilted editor window, while zooming in and out just for kicks (all of this can be done by manipulating the morph with its halo's menu) just to see how crisp everything is - thats FUN!

Also, try taking apart the standard system browser (4 panes + editor), rearrange everything as per your tastes (by drag & drop), and ... everything still works