> How 'bout neither?  Forms submit queries; why not stick with the
> current query syntax?  That is, 'url?query' ... with 'query' looking
> something like:
>        name=value&name=value&name=value
> ...with the '=' and '&' characters used as reserved characters
> (escaped as %xx in any of the name or value strings, as usual).
Seems fine to me, and I want to drop my proposal to use @ and ! 
Marc further suggests allowing a given name to be repeated with
different values for attributes with multiple values.
This means you get one name=value pair per <input> field.
Dave