Right now Icenium's iOS publishing packager requires that the distribution provision you created in the Provisioning Portal has zero devices associated with it. Please try creating such a provision and see if the message the publishing packager gives you changes.
We'll look into why Mist is giving you this message. However, we might be unable to answer until after the holidays.
the Telerik team
Share feedback and vote for features on our Feedback Portal.
Want some Kendo UI online training - head over to Pluralsight.