Besides native apps from Apple, Microsoft, and Adobe (Universal 2), the demo included Maya and Shadow of the Tomb Raider (Rosetta 2), and Parallels Desktop (unspecified virtualization improvements). I couldn't tell if the guest O/S was Debian for x84-64 or Aarch64.
One of the About This Mac dialogs showed an A12Z with 16 GB, which is consistent with the developer transition kit, basically an iPad Pro in a Mac mini case: A12Z, 16 GB, 512 GB SSD.