Been making this decison myself in the last few days.
In the end I went for an ultra cheap laptop at £230 rather than spash out on an Asus (with detachable keyboard) at near twice the price.
If I were going for a tablet the Asus is the one I would have had though as it has a USB port. I really liked the Samsung Galaxy but no USB port. I wouldn't buy Apple because of the way they always try an lock you into their operating system.
The next time I may well get a tablet. By then the price, power and functionality will surely match a current laptop.
I'm pretty sure I wouldn't go for an ipad. Lack of Usb and being tied into Apple really put me off.
I think a notebook or small laptop would be good from a functional perspective but having had a work laptop for years I guess I'm looking for something different also. When I travel with work I also feel like I could take a tablet with me but not another laptop. So I guess I have a real wish for something that is light and small.
Does anyone have an Asus as it does seem to be the best tablet? Take on board the comment about the cost though..not cheap is it?