pearpc is a mac os emulation program for the PC. So, yes, its a pc running OS-X. Considering that, thats cebit I am assuming that pear pc designed these to show off their product. Great job on the project, looks very nice. I have heard that performance wise it doesn't run all that great. :ermm:
"Fix it 'til it Breaks."

Jacob - EiC & Director of Technology
Mac Pro Quad 2.66 - 4GB RAM
160 GB SATA RAID 1 - 650 GB Storage
Quad 19" Widescreen LCDs
Accessorized to the Hilt