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Comment Re:So in other words it's used and is useful (Score 1) 248

GPS' horizontal accuracy is good - about 1m. But its vertical accuracy is horrible - anywhere from tens of meters to a hundred meters or more. GPS was never made with vertical accuracy in mind.

GPS vertical accuracy is just as good as it's "horizontal" accuracy. It is just that the GPS receiver does not have accurate topological data, which is difficult to comeby. Early GPS receivers didn't have any topological data at all.

Comment Re:Don't (Score 1) 687

Seriously. Don't.

I agree. I was a long time user of UltraEdit and later UEStudio. I liked their products and purchased lifetime upgrades for both home use and work. When I purchased, they gave me a serial number that they seemed to change a lot. This was presumably a futile effort to shake the pirates. Nonetheless, I could put it on all my machines and I was happy. Then they hired some guy who was going to turn them into a real software company and he put limits on how many activations you could have per license. I think that number is two activations. I just decided their editor wasn't worth the effort and went to an open source alternative. Here is a specific case where their desire to prevent piracy (which it didn't - you can easily find cracked copies) cost them a paying customer. You rock IDM - not.

As to the original question, I think a serial number is fine. Much more than that and you risk pissing off your paying customers.

Comment Re:BS (Score 1) 415

Anyway, he's a tech writer, so I assume it would be easier for him to call up Adobe and say, "Hey, I'm working on this hilarious project, do you happen to have..."

More likely what happened is he called up Adobe and said "Hey, I'm looking for a copy of your software that isn't riddled with security holes" and that is what they came up with.

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