I have been playing with the new map book functionality in ArcGIS 10 to re-create maps I have made in the past. The new Data Driven maps with page queries is a pretty powerful tool.
Is there a way to match the rotation of inset map, secondary data frame, with the main layer being used for the data driven maps? I found it is possible to match the extent in the 'Data Frame' tab of the 'Data Frame Properties', is this also the place to find the rotation option?
If this is something that you need to code, is it possible to build it into the mxd and to have it launch on refresh?
Not sure I understand how Python is supposed to work within a mxd.