I guess I could be a little more specific...
Titus, the reason I say that your driver addition will be a dead-end is that the new 7.1 large types won't require the use of special lo_ calls in order to use them.
There WILL have to be ways to insert and update binary fields, and current functionality for byte arrays suck. I'm presuming this will be improved because real large objects will be based upon them. I may offer to help out if necessary, I've worked with Jan Wieck on referential integrity, it was fun, and he's the implementor for the new large objects.
When this functionality is added, we will need some driver work to stuff binary data into the database using the new large types. Our mutual efforts are both dead ends because the code will be new.
New and SIMPLER than either of our efforts...
