@JamesMontemagno just posted a blog about simplifying app signing with secure siles in Visual Studio Team Services.
Read it HERE. Feel free to comment and discuss below
Can both the Android and iOS apps be built using the 'Hosted' agent queue?
There are currently PC and Linux hosted agents.
You can install an agent on any Mac though locally or you can use mac in cloud: https://support.macincloud.com/support/solutions/articles/8000016614-getting-started-with-the-macincloud-vsts-build-agent-plan
Xamarin Inc., as a wholly-owned Microsoft subsidiary acting as a separate legal entity, adheres to the Microsoft Privacy Statement: Privacy & cookies