The release date is in approx 1 month (we still need to do some tests before we consider it fit for commercial release).

About exporting, you can export the scene data (terrain geometry, textures, object geometry and placement) in any format you see fit using the SDK. The kit will come with some built-in exporters/importer (like COLLADA, raw, simple text, DEM) with full source code and step by step tutorials.

Regards,
Licu