You can see an aggregated overview of my Mobile Push metrics in the Mobile channel dashboard. You can change filter criteria and drill down to details for some of the visualizations.

To access the Mobile dashboard, click on the folder icon in the upper right corner:

Then go to Folders > Shared > Insights > Channel performance.

Clicking on the folder icon again will hide the folders' sidebar.

You can set the date range:

Select a different metric:

Contact level data

You can drill down into more details. Find out more about Contact level data reports.