Who ARE these people constantly asking for thinner and thinner phones??? Or is "Well... we can make it 0.001mm thinner?" the ONLY answer the engineers have when the marketing people are hounding them for the "next big thing"...
Then there is that time thing. It's not making the trip in 30 minutes if it stops 5 times between the two cities. Maybe they are thinking of express trips interspersed with trips that stop? The article doesn't say.
But, the article DOES say. Did you mistake the summary for the article? What you're reading now is a comment if you're still confused.
From said article:
With four tracks, the innermost two would be reserved for nonstop travel, going 116 miles in a half hour. The outer two tracks would allow a one-hour trip, with stops slated for Chandler, Maricopa, Casa Grande, Eloy, Red Rock and Marana.
Next time I want to make a sloppy kindergarden finger-paint drawing I'm so there!
That's just an example application, demonstrating the pressure sensitivity and multi-touch capability of the technology. The technology is not exclusively limited to that demonstration and I know you are a smart enough person to see through that straw man argument you are putting up there.
X-Y sensing pads have a long and dismal history-- They work fine for the first day but the slightest bit of moisture or grunge or wear and they go downhill in a hurry.
Care to cite some sources? I have been following multi-touch technology for a while and this is the first demonstration I've seen of a non-capacitance based (iphone is capacitance) non-camera based multi-touch interface that is thin and flat and claims to be flexible, mostly transparent, and cheap. If you have some examples that show multi-touch from this "long dismal history" you are talking about, I am genuinely interested in hearing about them.
Optimization hinders evolution.