I used a borrowed Dell laptop last weekend which had a touchscreen. Impressive technoloogy, but I didn't get used to it in the few hours I used it, wasn't comfortable with it. I'm not saying that with time I wouldn't have got used to it but the constant reaching forward can't be good for you (another form of RSI), and I can't help feeling that the screen is likely to end up damaged in some way from constantly cleaning off fingers marks or being jabbed with a pen.