The way things are going, I'm going to assume most--if not all--of the titles Gameloft releases for the E3D will be in 3D. The good thing about the feature is that you can adjust it (even turn it off). The bad thing is that they seem to be using lower res graphics (800x480 vs. native 960x540) in order to get the 3D effect to run smoothly.
Adding support to new devices isn't easy. The SGSII still doesn't have all of the titles available for it and it's been out for a month or so. Keep in mind that the EVO 3D launched two days ago...They seem to have quite a few titles in the works or nearly ready, but certain things (such as the OTA update) are preventing them from releasing the updates for this particular device.