Ok, here's how it goes with NIKE+ on the iPT. I just began using it last night. No screenshots, but I will describe what I see and know so for. It will take a while to fully probe all function and accuracy.
The shoes have an indent for the tiny sensor. You remove a foam nub and put in the sensor. Simple. Replace the foot pad and you are ready.
Make sure you have Nike+ loaded on your iPod and play with the program settings if necessary. I think this is where I set up the sensor. It asks you to walk/run around to active the sensor and allow the phone to recognize it. After that you have full access to the program and all functions. I remember entering height and weight here as well.
Opening the NIKE+ program brings up a screen with "WORKOUTS" . Basic, Time, Distance, Calorie and Calibratrion.
Calibration gives you a time/distance recognition feature. I picked a 1/5th of a mile calibration but by the end it told me I already ran half a mile. -_-; I have no idea how far I ran, but it told me it knew.
It behaves like a music player - you hit play and a female voice says "BEGIN....WORKOUT," or something like it. Then you run and it registers.
You can pick your workouts by time, distance or amount of calories you want to burn. So I assume (haven't used it a second time yet) it tells you when you have hit your goal and you can stop.
Then when you plug it into the computer it will send the data to NIKE+'s website, if you allow it. And there they will track your workout progress over time. Pretty neato-keen stuff, indeed. Nothing too complex or bizarre, just prudent information and resource management.
You can choose playlists to run through while you run. Now I have to make a special Nike+ playlist for the iPod. It also gives you the choice of a 'danger' song you play when you hit the panic button, to give you the motivation to complete or get over a difficult hurdle or boost of expenditure, etc.
It'll make me run! That's for sure. Running always sucked for me because I could never gauge much about the runs I did. The program is good, and it isn't too baroque, intimidating or fussy to set up. So you can just get out there and start after a minute of entering vital stats and walking a few steps.