In my new house, I have Lutron mechanized shades. As you might expect, this produced a new plugin. If you have a wired Lutron system with shades, drapes, or blinds, and a Lutron network interface connected to your network (or a serial port), then Cynical Lutron will let you control them comfortably. At least it works in my house.
Details are, as always, in the documentation: http://www.cynic.org/indigo/plugins/online/lutron.html. This should be able to talk to any wired Lutron installation with the requisite network interface. You just can't tell other types of Lutron devices (lights, buttons, sensors) to do anything. Well, except perhaps with the expert command, if you know what you're doing.
Cheers
-- perry