We do not have any plans to provide a connector to Plone. We do offer APIs to enable customers to create connectors to various CMS systems and other services.You can get more information here: Integrating third-party systems with AEM Mobile

I recommend posting your question in one of the Acrobat forums. Linked here: Acrobat

Sharing information I posted on another thread re: banners that also relates here ...Exploration areas include an HTML Card enabling full customization and API access and a way to invoke the purchase flow. These items do not yet have delivery targets but are under consideration.Kristy

Thank you for the feedback. Promotional banners (for subscriptions or other experiences) are in discussion and recognized as an important feature for many of you.To Add: Exploration areas include an HTML Card enabling full customization and API access and a way to invoke the purchase flow.Kristy

Hello Ulrich,Customization of the sign in dialog is not currently supported. We are currently working on some additional authentication features that, when released, will enable you to provide a URL to display our custom sign in UI in a web view giving you full control over the sign in experience. This new feature will also include support for IDPs including SAML and OAuth2. As we get further in the development of this feature, I will be able to post the target delivery timeline.Kristy

It is not possible to change the "read more" text at this time. As part of the roadmap, we are evaluating several areas of customization including the ability to change/customize UI text.Kristy

Thank you for reporting this. The social sharing function is expected to display and the team is investigating the issue.