SaberFX - Rotoscoping for the rest of us
SaberFX is used for adding special effects to your movies. It works just like a drawing program, except that you are drawing movie style special effects onto the frames of your movie. This process is often referred to as Rotoscoping. The goal of SaberFX is to make this process as quick and easy as possible. The general process of producing a movie with SaberFX is to film an action sequence, usually involving an actor holding a prop (a toy saber or sword). This movie is then edited by drawing special effects over the frames of the movie to hide the prop.

Saber Drawing

Touch down just above the handle of the Saber prop in the movie, and while keeping the your finger down, slide up to the tip of the Saber. While drawing, the contents of the video under the touch are displayed at the top left revealing what would otherwise be hidden under your finger. This allows for precise placement of the effect on top of the video in order to hide the prop:

Saber Blurs

Fast moving sabers cause a blurring in the video frame. To cover these, select the saber in the video (use the editing button to turn on editing) and touch on the saber. The saber is selected if it draws the blue handles on each end. Once it is selected, the Saber per frame properties are shown below the scrubber.
Here is an example done by my kids (with some help from me), to show what can be done with SaberFX: