I have updated Sugar and its dependencies in the PPA, to try it out in Gutsy follow the instructions in the OLPC wiki. There are about a dozen activities included, the ones really interesting for teaching programming are Pippy and TurtleArt.

The Personal Package Archives feature of Launchpad is great! The only thing I miss is signing the archives with the uploaders' GPG keys.

During the past few days I have been using my newly created PPA for storing experimental packages of Sugar, the user interface on the XO/OLPC/100$ laptop.

If you want to see what it looks and behaves like, install sugar-emulator and the activity packages in my archive.
Do

$sudo -s

#echo "deb http://ppa.launchpad.net/jani/ubuntu gutsy universe" > /etc/apt/sources.list.d/sugar.list

#apt-get update

#apt-get install sugar-emulator sugar-{calculate,write,memorize,connect,chat}-activity

or the equivalent in your favourite package manager frontend, then run sugar-emulator.

Useful shortcuts in the emulator, which basically is a Xephyr session : Alt-f for toggling the frame, F1, F2, F3, F4 for changing the view although these have limited use in non-mesh scenarios, Alt-q to quit, and Alt-TAB to cycle through your regular non-sugar desktop apps.

Only packages for Gutsy are available and only for a handful of activities (apps in Sugarspeak). As upstream activities get stable for the upcoming beta deployments I'll probably add them.