Greg posted a bit more detail about what's happening with OLPC and Fedora:
http://gregdek.livejournal.com/43698.html
He links to the todo-list of packages:
https://fedoraproject.org/wiki/OLPC/Packages_for_F11
... which includes a short discussion on the "etoys" and "squeak-vm" packages, hinting that there might be a packaging problem.
- Bert -