Sileo is the exclusive package manager for handsets that have been pwned with the Electra Team’s Chimera or Electra jailbreaks, but non-jailbroken devices can deploy a special build of Sileo for testing and repository-browsing purposes.
On Friday, the Sileo Team issued a revised iteration of the Sileo Demo for non-jailbroken devices, bringing it up to version 1.2.0: