Amazing
I just got a new GPS, a Garmin 76 CSx, the "x" meaning it has a removeable, rewriteable memory chip. It's called "microSD".
The one that came with it is 128 megs. I purchased another one which is 512 megs.
These things hold that much data, organize it, and have it available for retrieval.
And they are about the size of a fingernail. Smaller, really. Weigh a gram, maybe 2.
Awesome.
Arf