I have been using Wuala for quite a while. The great thing about Wuala (as opposed to Dropbox and other competitors) is:

1. that you can earn storage
2. that all your data is strongly encrypted

I was running bitcoin on my computer, but when I log out, the bitcoin program stops. Because I wanted to generate coins also when not logged in, I wanted to run the bitcoin daemon. Finally I got around to figure out how.
First I needed to install the bitcoin package 0.3.24-ppa2~maverick

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

I knew Grub2 was coming and I would have to figure out how to use it. The grub terminal has somewhat changed; e.g. the kernel command got replaced by the linux command. To get my MacMini booting from the grub terminal I need the following commands:

root (hd0,4)
linux /vmlinuz root=/dev/sda4
boot


On the receiving machine (booted from live CD or similarly inactive partition sda):
netcat -l -p 4778 | dd of=/dev/sda

On the sending machine (booted from live CD or similarly inactive partition sdb):
dd if=/dev/sdb | netcat 192.168.0.4 4778

(-l listen; -p port)