Hem wifi ile hem edge ile kullandığınız data'yı widget olarak gösteriyor.
(https://g1.gstatic.com/android/market/com.roysolberg.android.datacounter/ss-320-0-2)
Data counter widget
https://market.android.com/details?id=com.roysolberg.android.datacounter&feature=search_result (https://market.android.com/details?id=com.roysolberg.android.datacounter&feature=search_result)