At Disney's California Adventure today the brand new Silly Symphony Swings were open and operating. The swings have been under construction ever since the Orange Stinger Swings closed. This opening may not be permanent and could just be a "soft opening" for testing today.
Here is a picture of the entrance to the Silly Symphony Swings across the way from Pizza Oom Mow Mow. On the official Disneyland site for DCA the ride is still listed as "Opening Spring 2010."
New for the Silly Symphony Swings compared to the Orange Stinger Swings are the two entrance lines. One line on the right side is the traditional entrance and the line on the left is for tandem swings (see picture above) for a parent to ride on a double seated swing with their child. The tandem swings are for children who wish to ride but are not taller than 48 inches (but are at least 40 inches tall). This line allows them to ride with an adult on the same swing. There are about 7-8 tandem swings on the ride which allows that line to move fairly quickly.
The ride itself is very similar to the previous version but instead of buzzing sounds from bees in an orange the Mickey conducted band plays the William Tell Overture. The ride is fairly quick and only lasts about 2 minutes but it is very enjoyable and offers much improved views of the park compared to the Orange Stinger.
This ride may not be fully open yet but was open today and should be open and operating on a permanent basis in the near future.