In addition to Google Search, the Google Translate, Authenticator, and Voice apps - along with five others - have been updated today as well, though these revisions aren't quite as exciting as new Google Now cards.
First, the Translate app received a bump to 2.5.3, adding text recognition via the camera translate function for Chinese, Japanese, and Korean. Handwriting recognition has been added for a number of new languages, as well, including: Afrikaans, Croatian, Czech, Icelandic, Latvian, Lithuanian, Macedonian, Slovak, Slovenian, Ukrainian, and Welsh.
Google Voice is now at 0.4.2.75 (which just made me realize, Google still considers this a pre-1.0 app after over 2 years, yikes), and adds a much-needed fix for a bug that caused duplicate notifications to appear until cleared on each device with the Google Voice app installed (Update: as far as I can tell, the inbox syncing issue across devices remains unfixed - bummer). I am very happy about this one, personally. It also fixes delayed SMS notifications, if you were having that issue.
Google Authenticator has been updated to 2.35, and includes bug fixes in the account setup area, as well as UI improvements. Hit up the Play Store links for each of these to grab the updates now, if you're not finding them on your device.
Finally, Zagat got a bug fix update that fixes crashes on launch on some hardware.
On the less notable front, updated to Google Apps Device Policy (link), YouTube for Google TV (link), Google Catalogs (link), and My Tracks (link) were also issued. The YouTube for Google TV update adds ad skipping, so that's definitely worth checking out if you're a GTV owner.