Kindle 3: Newer keyboards have matte/anti-slip keys
This isn't a problem report or complaint -- just a curiosity.
I received a new Kindle yesterday to replace the one I got on launch day since somehow the bottom of the case had bent slightly (and it was never dropped in such a way to cause that kind of damage) and a small gap existed that slightly exposed the inside of the Kindle (e.g. the side of the USB port could be seen). I didn't think to mention it to the phone rep, but the unit also had the slow-sliding-switch problem (and always has); the replacement's switch slides freely and as expected.
I noticed immediately, though, that the keyboard and four-way controller have a new texture that feels and looks slightly different -- antislip, perhaps. This is only on the keyboard and controller, and there is no change in the page-turning buttons.
Here's a photo I took. It may be a little hard to see the change, but if you look closely the keyboard on one of the Kindles isn't as shiny as the other -- that's the new one. Model no. is D00901.
The "old" one goes back to Amazon today or Monday.