PrimaryPad appears to be the first collaborative word processor to be available for Kindle and it sure packs one hell of a Punch. PrimaryPad is based on Etherpad so you can do really-real time collaboration over the net. Currently the user interface is a bit tricky to operate but this will be improved over the next few months.
What does this mean? If someone calls you and asks you to proof read a letter you can easily do it on your kindle and make any changes in really-real time.
What does it mean for schools? Could this be the beginning of the demise of school infrastructures including servers/wireless networks. Could 3G/HSDPA be your device connectivity of the future.
This is the first announcement by the Etherpad foundation due over the next 5 days, with another 4 expected it is great news and hopefully a sign of things to come!