UsageTracker
I absolutely love the application! A few thoughts though:
a) It would be nice to have dual/multiple progress bars to visually track Uploads AND Downloads at the same time (ala SurplusMeter)
b) Also, I think it would be better if the numerical tracking of Total Current Usage wasn't limited to be displayed simply as bytes, but rather be customizable (ie. KB, MB, etc)
c) Major necessity for some: a nice clean way to see one's archive/history for prior months/days/whatever period of tracking the user sets.
Maybe these things ARE available in you're program and I've just missed them, but I think the addition of these small details would definitely warrant a purchase from most - myself included!
Looking forward to v1.1.0!