Google Base Documentation error

For anyone else who’s read the Google Base XSD file and is wondering why an Atom 1.0 file created against this specification won’t validate if they use PayPal - it’s because that attribute, despite being in the XSD, isn’t in the live schema.

Just to add to the mess, the XSD file and  documentation also say that price_type can only have two values: “negotiable” or “starting”.  However if you create a product entry via the online interface on the Google Base website, you can set the price_type to “Fixed”.

This begs the question - what are they validating against?  What is the point of having an XSD file if it’s not there for validation?

Google Base is rough at the edges, and it’s a shame they didn’t put more work into it before releasing it.  I miss certain features, such as fetching an XML feed of products from my website rather than having to upload the file to Google Base.