We released the Connect IQ 4.0 Preview 3 SDK today, which includes several fixes for issues identified in earlier preview releases. We've also released two 4.0-compatible wearable device configurations (Upcoming Wearable and Upcoming Small Wearable), which you can use to start updating your own apps for future 4.0-compatible products. The Preview 3 SDK is required to use these devices, so be sure to install both!
You can get the Connect IQ 4.0 Preview 3 SDK and the upcoming wearable configurations today using the Connect IQ SDK Manager (make sure you have the latest version). We also have a sample on Github that demonstrates Monkey Types features.
For more information on some of the features available in the 4.0 SDK, please take a look at the Welcome to Connect IQ 4.0 announcement. If you have any feedback on these new features, we’d love to hear it. Please drop us a line in the forums so we can see what you think.