DataObject compatibility

Hi there, I´m considering using DB_DataObject for a new app. However, I have two questions remaining about it: 1. Has it been tested with other databases than MySQL? I need support for at least Microsoft SQL Server as well. Postgres and Oracle would be neat, too ;-) 2. Is it possible to add class properties that are not treated as table fields? I often like to have getGrid(), getForm() etc. methods that use a common template object that is stored in a property, like: class Foo {

       var $field_one;
       var $field_two;
       var $_templateobjects_are_no_fields;

} Thanks in advance for any info ;-) Regards, Markus