Comment by flyosity

The video still shows a lot of lag between when the stylus touches the glass and the pixels in the app show the pen trail. This needs to be heavily optimized or else it will make their hardware a lot of engineering work for nothing and users won't be happy. At this stage, from the video, it looks to have similar latency as other existing iPad sketch apps and those have no hardware dongle or stylus (and cost $100 less.)