Since the last update there have been another 26 Zippy the Pinhead locations listed at Waymarking.com. There were three submissions approved that originated in Spain.
This brings the total approved in the category to 370.
There are also two new possibilities created in the last couple of months.
05/13/11 If - "Maui & Sons", Hollywood CA
Zippy confers with Arnold Sharkey
03/28/11 A Ton Of Fun - Bossier City LA
Heavy's Sports Bar @ 2540 Barksdale Boulevard
The last update was a correction to a location in South Carolina which was pointed out by Waymarker vhasler.