I recently came across an excellent list of plug-ins for the Gimp Photo Editor which is included with the Zonbu.
While not all of these make sense for the Zonbu, and some may not even run well on the lightweight hardware, others, like Red Eye correction are perfect for the target audience. Anything that puts the features at hand that a typical home user would be interested, should fit the Zonbu philosophy.
In that vein, I really miss the ability to right-click-and-resize-to-email feature I had in my Windows XP power toys. Should be an easy one I add I expect…
Hopefully some of these will make it in to the next Zonbu update: http://www.techzilo.com/gimp-plugins/