No I considered that but I don't think that necesserally makes the iPad the winner. The following points spring to mind:
- if it's web based you could just use any browser and someone will undercut the iPad. It's about twice the price of a netbook so someone will make a cheaper version
- no silverlight support. As far as I know as good as HTML 5 is it can't support multi touch and just uses click events for touch events
I could go on but ultimately I think the iPad just isn't suited. Ultimately it's a closed device not a computer.