I'd love an IB plugin.
Also, FinFx has an API page: http://www.interactivebrokers.com/en/p.php?f=api&ib_entity=llc

They're one of the best brokers, a little too close to Russia, but as safe as Finland can be.

Should we have a thread open on these API projects? The future and the scope of Zorro is quite dependent on the availability of these interfaces.