BusyMac has released BusyCal 1.6.4, which lands just two days after the release of version 1.6.3. That update provided support for the Gatekeeper security feature in OS X 10.8 Mountain Lion, as well as a few minor fixes (a dock icon redraw bug on the MacBook Pro with Retina Display and a 403 error when syncing an iCloud WebDAV calendar). It also added support for the Daylite CalDAV server. Version 1.6.4 was released quickly to fix a Gatekeeper code-signing bug that caused some installation errors. ($49.99 new, free update, 6.7 MB, release notes)
Quick Download of Multiple Attachments in Apple Mail
To download a bunch of attachments quickly, look in the header of the email message that they came in. Make sure the triangle adjacent to the paperclip icon is pointing to the right (click the triangle if needed), and then drag the paperclip icon to your Desktop or to another folder. Release the mouse button and all attachments copy to that location.