As the post indicates:
Together, we’ve published millions of records including major collections of births, marriages and deaths covering America, Australia, and Ireland, the United States Federal Census Collection, and the British Army Service Records.The post goes on to explain:
In the last year, Findmypast and FamilySearch have worked tirelessly to digitize millions of exclusive collections from England, Australia, and the United States. Digitizing these records not only preserves the content for future generations to enjoy, but also gives researchers enhanced access to more records to help uncover their family history.
Findmypast is also currently digitizing the 1939 Register for England and Wales. This important document, which is exclusive to Findmypast, contains the only complete record of the UK population between 1921 to 1951, as other official documents and censuses were destroyed during WW2. FamilySearch members will automatically have access to this crucial historical document.In addition to the number of members who have signed up for Findmypast.com, the post notes:
This collaboration has resulted in more than 16 million ancestors being added to family trees on Findmypast. LDS members who have not signed up for access to Findmypast can do so today by visiting FamilySearch.org/partneraccess. Both sites are now working to integrate their family trees, hints, and other features that will help connect families from the past, and present, and for the future.