[header] How to manage 3 g usage on an android device with 3 g watchdog [title] Download 3 g watchdog and appdroid from the android market (preferably over wifi). [title] Open 3 g watchdog. [title] Define your data plan's quota and starting date. 
[step] If you are unsure of the date and plan, contact your mobile carrier and inquire. [title] Set the percentage of the quota at which you would like to be warned of your high 3 g usage.