I went to a conference recently, and a woman in my row took all her notes on a little black tablet. It wasn't an iPad or that sort of tablet - she was handwriting on it with a digital pen. I've had a little google and they seem to cost anything from $30 to $30000000!! I was wondering about getting one for my daughter who is away at university. Are the cheap ones pointless? Are the expensive ones good? Anyone got any experience?