I'm taking my n900 into a repair centre next week for them to give me a replacement back cover which they are fixing under warranty (kickstand only attached at one end, which I'm sure it came like that in the box). I will ask the folks there about the keyboard phenomenon, see what it throws up. i've never dropped the device and keep it in my trouser pocket normally.

Anyone got any ideas, or questions they want answered, that I could ask them about?