The May 2004 issue of Scientific American has an article by Per Enge entitled "Retooling the Global Positioning System". It is quite well done, and compliments "A Walk in the Woods" in the February 2004 issue, which is about the author's (Mark Clemens) introduction to geocaching. Both articles are HIGHLY! recommended.
One figure cited in the Enge article is that over 200,000 GPSrs are shipped EACH MONTH! While not all of 'em are going into the hands of would be geocachers, a recent experience of teaching a class in geocaching (GCJ4DY), in which everybody brought in previously under-used GPSrs, says there are a lot of new potential geocachers out there.
Enge's article appeared arrived a few days after the class, DRAT! It has a really good explanation of D-GPS and other more exotic topics. He postulates that GPS will get WAY better in the future.
What happens to geocaching when we all have centimeter accuracy? Commercial survey units have this today, and while they take a second mortgage to buy, the inexorable pace of technology means that soon, highly accurate GPS will be available in almost every conceivable form. Last Thursday (22 Apr 04),
local (I'm in Silicon Valley) GPS chip producer SiRF did an Initial Public Offering (IPO) that shot up 20%. (No, I have no association or financial interest in them.) Their thing is GPS enabled cell phones to comply with the E911 requirements for automatic location of emergency calls.
I'm a TNLNSL kinda guy, so the hunt is what keeps me going. Will it be as exciting when the geocaching/mapquest/mapoint/whatever maps take you within a thumbnail width of the actual cache position?
In some ways, we'll always be able to place caches that require insight and activity. Here in Silicon Valley, centimeter accuracy is of no value in solving one of The Rat's (and several other) puzzle caches. Just helps at the end.
So, fellow geek geocachers, where are we headed? What will the sport look like in two/five/ten years?? How can we keep it as captivating as it has become for me and you???
spider3