This is very simple and funny app.
It turns your iPhone into saw, which can cut your finger if you touch it.
Just saw, your fingers, blood and strange, bloody sounds.
Show your friends, that your iPhone cuts your finger!
Or just play with blood, shaking and turning your iPhone (Accelerometer works with blood).
Multitouch enabled too! cut more fingers.
Have fun!
Push and Pull 
Multiple Attachments 
Sign Your Place