Thought I should add this:

I showed my Dad my N900 over x-mas and I thought I would be showing off when I loaded the x-term (I didn't know how to ever do ls on it then).
The biggest smile comes on his face, he grabs the beast out my hands and starts typing away at the x-term. I was shocked, he smiled and said "did you think I was too old for linux?"

Made me laugh. It's funny how the N900 can bring the best out in people :-)