Whoa sorry guys, just saw all these questions.
Simon, unfortunately the CSV export/import of SEO title/description is not available right now, but there is a fix on the way. Apologies for the inconvenience.
Chris, this is the first I've ever heard of that, and looking at your feed didn't see any problems. If you still think something is wrong please let me know.
Gaurav, unfortunately Google Shopping has many region-specific requirements like listing your products with the regional currency + tax-inclusive pricing rules, so there is currently no easy way to do publish to multiple shopping destinations.
Cheers,
Shawn