All GPIO stuff is developed and tested on RaspbianSo I'm wondering if Raspbian has any specific package advantages or custom tweaks compared to other distros on that front?
JFI They are excellent if just plugging an add-on board on once and leaving it but I tried a couple of them out and the pins have a tendency to come back out with repeated useThis may be the answer to non soldered GPIO pin headers
doesn't say to put the a card into the slot (or even to plug in a power supply)The Raspberry Pi is a small computer that can do lots of things. You plug it into a monitor and attach a keyboard and mouse.
It will run at 3V3 - just not at high clock speedsThe Atmel processor doesn't run at 3V3