You crash your motorbike and lose a chunk of your finger. What do you do? If you’re Finnish nerd Jerry Jalava, you fashion a prosthetic finger from silicone and install a USB 'thumb' drive inside. That’s not all. Jerry has various operating systems installed on the 2GB drive. He just pops off his finger, jams his digit into a USB port and he can boot into Billix, CouchDBX or Ajatus. And version 2.0 is already in the works.