Given that for many pages there is no way to have page fit the tablet screen with a reasonable font size, without the "Fit to page" feature, and that many tablet users do want this feature, in one shape or the other, have you considered implementing a similar feature from scratch and adding it to the new (Fremantle) browser? To avoid breaking page layouts, it may be useful to rename it to "Try fitting to width", and bail out on HTML elements that cannot be resized.