I implemented the roundup-reminder script as found in 1.3.2 source files - very helpful.   I believe there are three small bugs in there.  

1.  Line 99 should have "Activity" instead of "Urgency"


The next two are about the dates.  With the original I had creation dates such as tomorrow in the email.  I had to reverse the items in the formula calculating the date to show the correct dates in the Pretty format.
2.  Line 109 and 150 should read
        creation = (creation_date - date.Date('.')).pretty() 

instead of 
        creation = (date.Date('.') - creation_date).pretty()

3.  Line 114 and 156 should read
        activity = (activity_date - date.Date('.')).pretty()

instead of
        activity = (date.Date('.') - activity_date).pretty()

Thank you,
Tonu Mikk 
tmikk@umn.edu