That's our plan - to have plugins in future.
We've done a few custom ones, but nothing that is polished enough to release. I've been working on one in particular called "importAny" that supports importing XML or CSV data into any of the tables and has some neat features.
There's a lot of special cases that come up with importing data though that make it more challenging.
If you need anything in particular feel free to drop me an email.
Dave Edis - Senior Developer
interactivetools.com