Google ANDROID 2.3.4 - Manual (Page 29)

Android basics 29
AUG-2.3.4-105 Android User’s Guide
Phone is sharing its data connection
via USB (USB tethering) Carrier data use threshold approach-
ing or exceeded
Phone is sharing its data connection
as a Wi-Fi hotspot (Wi-Fi tethering) Application update available
Phone is tethered in multiple ways System update available