Available in both free and the full version (from version 1.6.1 - Sep 2015).
Here is an example on how iPad multitasking looks on iPad Air 2 or iPad mini 4+:
Which iPads will support iPad multitasking? Right now those will be iPad Air with iPad mini 2 and 3 to support a “Slide over” and iPad Air 2 with iPad mini 4 supporting fully blown split view screen.
So excited you’ll be able to use speedometer with any other app sharing iPad’s screen! That’s about productivity and Apple has really raised a bar on that!