David Pierce, writing for Wired:
That’s when I noticed the difference between the Pencil and just a stylus: It felt great. Perfect. Better than any stylus I’ve ever used by a wide margin. Not because the thing itself is so terrific—I like holding FiftyThree’s Pencil better, and there are lots of good styli out there—but because it’s the first time I’ve ever written on a screen and actually felt like I was writing on the screen. There was almost zero latency, meaning the ink appeared to flow out of the Pencil and not trail half an inch behind. With the tiniest added pressure, the line became the tiniest bit thicker. I tapped on the No. 2 pencil mode, and it wrote and shaded just like all the pencils I used to sharpen with that wall-mounted thing you had to crank.
It’s all about the latency. Make the latency disappear and then developers can really go to town.
Its latency that is the problem. Cinteq is fantastic but its latency is measured in half seconds. Build a system where the stylus and the screen are in sync in real time, that is your money maker.
I couldn’t wait for iPad Pro 3. It will be so sci-fi.
Dev’s are going to nuts on this for creative apps! People who are already dis-regarding this are talking from no usage experience – typical
The physically coupled keyboard and the performance of this stylus are what sold me on the Pro. The larger screen and quad speakers are just icing on the cake. I’m a Windows guy, but latency and jitter are why I never pulled the trigger on a Surface Pro. I’m in.
With all the griping about Apple software of late, when they nail it, they really nail it.
Pencil’s latency is 240 Hz which 4.17 ms.
Touch latency is 120 Hz 8.33 ms.
Display latency is 60 Hz or 16.66 ms
Total processing is 3 frames or 40 ms.
Wikipedia say cinteq has 200 Hz latency.
but that may be passive system. no active.
Gruber suggests here’s something more critical than low latency — platform policies that entice developer support.
http://daringfireball.net/linked/2015/09/14/sketch-ipad