[plt-scheme] SGDL PDE

Robby,

> Well, if you did develop a tool (to give you an idea, the syntax
> checker, mrspidey, mrflow, the teaching languages and many other things
> are tools) it would be a separate product, not requiring any
> modification to DrScheme and thus avoiding this problem. I imagine that
> the only changes you'd have to make to DrScheme itself would be bug
> fixes (assuming you couldn't upgrade to our later versions) and
> possibly exposing more functionality via the tools interface. In short,
> I can't imagine that you'd have made many chages that would be
> important to keep secret. That could could all live in the tool itself.

Studio (as we call it), is much more than a single tool. It is a set of
tightly integrated tools. In fact, Studio replaces most of DrScheme's tools.
So I think it was best to redesign it from scratch.

Dominique