Guess: Some sort of queue/FIFO with a bug in the read/write pointer logic that causes it to effectively decrease in depth over time.

The bug is not severe enough to drop/corrupt data, which would have made finding the issue easier, but eventually performance suffers.

Access point MACs, signal strength, and latitude / longitude coordinates gives you a geolocation database you can use to calculate your position via WiFi, ie: skyhook.

Ha, no. Nobody tips them except maybe tourists? So still cheaper than CA/WA, but not sure about Idaho.

Oregon gas is usually cheaper than Washington and California, even with full-service, due to lower gas taxes.

You can fill up yourself on the indian reservations like Warm Springs, though.

I heard that its actually legal to pump your own gas, just illegal for the stations to let you.. So if they're being slow, just get out and grab the pump and they'll run to help you.

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Yea, but the cat always eats them way before they get that large...

If you don't have a GPS, it uses wifi-location. So its not ridiculous at all to ask; maybe you should
have tried it before complaining?

It works rather well, actually.

Actually, one reason I haven't bought a kindle is because it does not contain a built-in light. (The other reasons would be cost and DRM)

I like to read in bed before I go to sleep, and having to use a desk lamp or a book light is rather annoying. I currently read some ebooks on my iPhone which works pretty well on its lowest brightness setting.

I would prefer a bigger / better resolution display, though, which is why I have atleast considered some ebook readers. But having to turn a light on just to read? Not really an option for me.

Now, during the day an eInk display would be wonderful! But it needs to work in the dark as well, atleast for me.

This is incorrect. Many download maps on the fly; many store maps in flash.

That's not even an advantage anymore, as several apps can cache the maps for usage when away from coverage.

My app, iTopoMaps, is specifically designed for this usage as it provides USGS topographic maps in the backcountry. I've had countless users tell me they've stopped using their Garmins, etc.

Battery life is still an issue compared to commercial units, and the GPS isn't the best, but hopefully that will be remedied soon by some external bluetooth units.

How do you know it doesn't change that when you run it?

How are they completely useless outside the US?

They are valid for land and sea travel between the US and Cananda/Mexico.