Thats a cool pack I saw all the 'essentials' which really are essential IMO!
As far as operating system goes. I doubt they will stretch themselves that thin but I wouldn't be suprised to see them really helping out a Linux distribution.
That picasa tool is great! Only #2 to Google Earth for me right now. I've pointed alot of the engineers we have out in field trailors to use Picasa to manage the photos they take for daily reports. So far so good, its been working out great for them.