The new release went out yesterday. The only change is that it includes 24 templates instead of 12, and the old ones were updated too.
Facts: in 38 days Zebra Paint had 38k downloads and 47% still have it installed. It has a 4-star rating (out of 5). It is currently the 6th most popular application in the Games/Casual category. And even more, it is a featured app on the market!
There are some requests for adding new features, but there will be no update in the foreseeable future.