I totally agree. Our organization needs such a feature right now! DT Donate is a great product but the lack of this feature is holding us back. I'd like to make a donation landing page for a specific area to donate to, at the request of another site that wants to advertise for us and link to such a page. DTH, if you can implement this it would probably mean significantly boosted donation revenue for our cause.
Please add my vote to this feature request. We have been using DT Donate for several of our web clients for about 5 years now... and are still hoping for the ability to add more than one donation form!