I have BlackBerry Peral 8100 that I use with notbook running Windows XP. What if I installed Ubuntu on the notebook? How could I make multimedia projects and transfer the to my Blackberry?

Roxio might work under Wine, but I'm not into running Windows apps on my linux boxen. I suggest reading this instead:

http://www.blackberryforums.com/linu...te-videos.html

As far as transfer, you just plug in the device and the SD card shows up as a USB hard drive, you just drag&drop content to it.