This isn't a great answer, but the way I've dealt with this issue is by using extra segments.  I built a segment for Desktop visits, Mobile Phone visits, and Tablet visits.  Then, set up three fallout reports each with a different segment applied.It worked fine, although it was kind of hacky, and wo...

The addition of breakdown segments for Data Warehouse was very useful.  Now I'm trying to move some of the reports I've created using the DW UI into scripts using the 1.3 reporting API, and I don't see any documentation of how to specify the breakdown segments.The parameters for the DataWarehouse.Re...

As a followup to Gigazelle's post, it doesn't look like Client Care will necessarily do anything about this.  I put in a request to take care of this exact issue (cannot edit or remove Ad Hoc reports created by users whose account is later deleted),The ticket was referred to engineering, where it sa...