Is it possible to analyze video in Graphical Analysis for iPad?

At this time, it is not possible to use Graphical Analysis for iPad to analyze video captured on iPad.
For more on Graphical Analysis for iPad, see:
http://www.vernier.com/ga-ipad

For video analysis on iPad, you can use Video Physics, which captures video and allows you to track motion and graph the results. Projects from Video Physics can be exported to Logger Pro 3 on a computer for quantitative analysis.
http://www.vernier.com/products/software/video-physics/