I own the 4GB Eee PC and I love it a lot. I was trying to develop ways to get more apps installed and increase performance.
I studied UnionFS and SquashFS and came up with great results. I squashed my /usr and /opt and turned 4GB install of Arch Linux into 1.5GB.
I was able to install a lot more applications on my computer. I increased disk perform
I recently upgraded to Leopard after getting my hands on a MacBook (goodbye G3 iBook!), and was unable to use X11 from my clean install.