Hello,

For those interested, I have made available a first draft of Bibi (a 
port of BYOB 3.1, based on Scratch) loading and working on Squeak 4.4 at 
this address:

http://www.zogotounga.net/comp/squeak/bibi.zip

It still has some rough edges and performance issues but is mostly 
usable; you should be able to load any Scratch or BYOB project and save 
them back, although in an upgraded and thus incompatible format.

Bugs are to be expected...


Stef