When Google handed out the new Android Wear LG G Watch to people at Google I/O, we knew it wouldn’t take long for developers to star pushing apps to the Play Store. While there are already a ton of apps that have been updated to support the watch, there are plenty yet to come. We have seen a few screens roll by of various watch faces that pretty cool, but are still stand alone apps that run on the screen. We had faith in Google though and it looks like they are going to bring the API needed create custom watch faces to developers really soon.
We are working to make this as simple as possible for you so that it’s easy to make good-looking faces that work well across multiple form factors, conserve battery, and display the user’s card stream nicely. Some of these changes won’t be ready until we migrate Android Wear to the Android L release later this year, but don’t fret: they’re coming! -Â Wayne Piekarski
The API is a little tricky and needs some special attention from Google to make it as fluid and functional as possible while making it easy to work with, especially with various form factors on the way. It doesn’t sound like it will be this month though. With Wayne’s statement leading to Android L for Android Wear, we are pegging the potential release of any supporting API’s to come out near that time. Talks still place Android L as being pushed out in October, but things can always change.
So, where does that leave us today? As we work on finalizing the API, we would suggest not posting your apps publicly to Google Play until there is a stable, published API (we’d suggest using Alpha or Beta channels, available through the Play Developer Console, in the meantime). These changes mentioned above are coming soon and will make it easier for you to create great watch faces, but the existing unpublished API may not be compatible with the next Android Wear release, and no one wants to disrupt the experience for users in the future.  - Wayne Piekarski
In a nutshell, do what you want devs, but they are suggesting that you dial things back a bit on the custom watch face apps. At least in terms of pushing them to the Play Store.
Source:Â Wayne Piekarski G+ Via Android and me
