Tim Shoppa wrote:
  I'm going to leave out the true factor, which is
how the ZX80's wedge
 shape immediately inspires everyone to use it as a doorstop :-) 
Nope ... way too
light for that!
The real fun is buiding your own from scratch! No kit here --
just order the parts.
http://home.micros.users.btopenworld.com/zx80/zx80.html