Welcome to the forums, dorisfox, and a Happy New Year

1. I believe white.
2. I have two gelaskins and both are top quality and quite beautiful, although they're stock ones, not from a photograph I uploaded.
3. You should check the cell carrier websites. Certainly has no connection to the eDGe
4. We're hoping Google will change its mind. With so many large tablets coming out, and some from large companies with some clout, we can only hope Google will relent. There are ways for you to install Google Market on your android device, but it doesn't seem "easy" or reliable.
5. All machines come from the same factory, so it doesn't matter where you get the device from. In the unusual situation where yours might have a problem, the retailer may give you a replacement themselves and in all cases enTourage will ensure your eDGe is fixed or replaced with all possible speed.
6. As a rule, no. Keyboards, USB memory sticks and many external USB hard drives work when plugged in. A specific model of USB Ethernet adapter works. USB VGA adapters work if they support a specific standard. Some USB 3G modems supposedly work although this is unsupported. Other than that, it probably won't work since enTourage has to write a driver specifically for the device.

Hope this helps you