I have done this but I wouldn't even know how to begin explaining the changes needed.  There were quite a few of them (the first step was to make BuildReportSql a static method).  I could send what I did to Splendid and they could potentially incorporate the changes if they are deemed beneficial.

I altered the Report 'engine' so that (some of these edits may have already been completed by Splendid but I am working on codebase of version 1.2):

1. User can view the report without having to go to EditView.

2. Date time fields are adjusted to exclude time components.  This works well for me because I also created a new field for all activities in the database called 'ACTIVITY_DATE'.  This way, I am able to work with all activities (Tasks, Calls, Meetings, and Emails) based on this 'normalized' field.  I can also work with it in a 'dynamic' fashion if you will (just like working with other standard fields like ASSIGNED_USER_ID).  So all date time fields are formatted for reports to show only the Date portion UNLESS it is the ACTIVITY_DATE field, then I show the full Date and Time.  Works for me, maybe not for others. 

3. User can view the report using the report viewer or click a link to export it directly to Excel or PDF.

4. Added a title to all reports that contains the name of the report and adds a Datetime stamp that the report was generated. 

5. Fixed BindSearchText so that bool case will show a yes/no drop down box.

6. We don't deal with decimal points so I format all fields of data type 'System.Decimal' to format of 'N0'

7. Bit values are translated for the user to 'Yes' or 'No' instead of displaying 1 or 0. 

8. All colums of a report can be sorted within the report viewer.

9. Added 'current_user' filter option for Assigned To fields. 

You only see the [Calls CALLS] text when the system has been compiled in Debug mode.

Have you tried publishing a report?  That is the recommended way to display a report for a standard users.