When i had my Motorola Defy i used to use some traffic counter, i can't find it but it's similar at this:

http://es.androidzoom.com/android_ap...-pro_mztw.html
# Features
- Cell (EDGE, 3G) and Wifi counter
- SMS and Call counter
- App network stats (if supported)
- Notification icon (update/usage)
- Display All/Month/Week/Today
- Limit and usage notification
- Billing/Cost calculation
- Exclude numbers and timespans
- Statistics and graphs

An app with that features for N9 would be great.
Can any developer say if this is possible?