If you are looking to gauge interest, then a band-map that displays worked calls around your frequency as does N1MM logger would be a great feature, a boon to S&P operation. I was thinking of trying to write something like that as an add-on Python program.
I saw a stat that suggested that less than 20% of operators in a contest ever call CQ. I call, but not as much as I do S&P given the "little pistol" nature of my station(s). So, I would guess that any assistance on the S&P side would help many users. :-)
Thanks again to all the tlf developers!
73,
Pierre VE3KTB sometimes /VY0 from NA-008