Please note that any LDS Tools app would need to use LDS Account. APIs that use LDS Account may only be used in official Church applications. This is documented in the wiki article Third-party API for gospel content: "...third-party developers are restricted from using LDS Account, which could give access to membership data."EricBowman wrote:There are enough of us that are competent programmers that all we need is the connection string to the Web Service you use for iOS or Android.
So in addition to having access to the Web Service used in LDS Tools, you would also have to be a member of a team working on an official Church application. As far as I know, there is no team that includes volunteers working on any Windows 8 applications at this point.