So, I've been using this app for about 2 months now and thought I'd share...they seem kinda low but apparently if you listen to MLB.com all day or music, it doesn't register, rather only key strokes. Pretty impressive actually. So, although I listen to media on my blackberry, I have proof I'm still productive :)
Here are the averages...
Daily use: 92 times, 1hr 56 min 30sec
Weekly: 305 times, 5 hr 38 m, 1 sec
Monthly: 1309 times, 24hr, 8 min, 41 sec

