I'd be interested in hearing from interaction designers who have
played extensively with the new One Laptop Per Child UI ("Sugar").
I saw the first public demo of Sugar back in August at AP's UX Week:
<http://www.adaptivepath.com/blog/2007/08/14/uxweek2007-lisa-strausfeld-on-one-laptop-per-child/
>
but never really got to play with it.