This update is realy significant. One of the major, and I mean Major, improvements is the ability to connect to external SQL databases. Live connections to MySQL, wow! Now it's possible to use the ease of creating lay-outs in Filemaker to create great interfaces for SQL databases.
And it works realy well. For instance a MySQL date field (yyyy-mm-dd) is converted to a Filemaker, more readable, format dd-mm-yyyy (or whatever you choose in your lay-out) and all changes are written back in the correct MySQL format.

See: http://www.filemaker.com/products/fmp/sql.html

This is the Filemaker I've been waiting for since Filemaker 6. Thank you, thank you, thank you!