@TheAccountant: C++ or some other bindings?

If C++ and it's already cross-compiled, you can either move the file via mass storage mode, or copy via ssh like I do. Or if your computer and N900 are on the same LAN, you can do this from a computer that has python installed:
Which will start a file server @ 0.0.0.0 on port 8000 by default. From Microb you can navigate to your servers address (probably 192.168.x.x:8000) and download the file from there.

That's what I love about this device: more than one way to do something.