Fedora
Sebastian Dziallas reports that there is a Sugar spin based on Fedora available here:
http://sdz.fedorapeople.org/olpc/sugar-spin.iso
The image itself is already a few days old, and there will be a new one soonish – but I wanted to wait with a new release until we can get the sugar-browse activity into Fedora and that way on the spin, since this greatly improves the spin's usability.
But that's not the main reason for this post: Inspired by an idea from Greg and thanks to help from Luke Macken, we've now a liveusb-creator build for Windows with support for the Sugar spin available here:
http://sdz.fedorapeople.org/olpc/liveusb-creator-3.0.zip
What does this mean? Well, you can now just run liveusb-creator on Windows and get that way the latest Sugar spin on your USB key, from which you can then boot (once your BIOS supports that).
If you try it out and have any feedback, please make sure to come up with it.
—Sebastian
Somewhat relevant list: https://www.redhat.com/mailman/listinfo/fedora-olpc-list