Apple has issued updates to its iWork applications, Numbers and Pages, adding full support for Lion for all three applications (Keynote, Numbers and Pages), and adding two new themes to Keynote. In addition, there are there security fixes in the updates, two for Numbers, to deal with maliciously crafted Excel files, and one in Pages, to protect against maliciously crafted Word documents.
The updates are available via Software Update, or may be downloaded here. Full information about the security fixes in this update is available here.