Recently lazy a long time did not come here to chat with you, WP 8.1 Preview release has been for a while, and store support for 8.1 applications for some time. I'll set aside this 8.1 App store to submit as a 8.1 start.
1. First login to Windows Phone devcenter link
Clicking on the Submit Application button on the left side of the screen will see the following page, which is consistent with the previous 8.0 store steps and we enter the application information directly.
WP 8.1 HERE and WP 8.0 different, the key is that the previous 8.0 of the application name is read from the application package, which will cause WP 8.0 application name duplication occurs, but 8.1 to solve this problem and 8.1 of the application store to achieve the concept of universal (general), in other words That's me. An application name we can use in both WIN8.1 and WP8.1. Or that I've got a win8/8.1 application I can use the association feature to use the name of the Win application.
Here's a summary of some of the scenarios you might encounter: