I'm pretty sure the Apple Newton in your image comes closer to accurately rendering handwriting than the one built by Apple!

If Star Trek creator Gene Roddenberry had patented the concept of small thin computer tablets as shown in his TV series years before the Newton, we would be talking about trekPads rather than iPads! And they would probably cost half as much as iPads. Hell, Roddenberry even envisioned Siri 40+ years before Apple bought them out!