DroidWall - Android Firewall is a front-end application for the powerful iptables Linux firewall. It allows you to restrict which applications are permitted to access your data networks.
This is the perfect solution if you don't have an unlimited data plan, or just wants to see your battery lasting longer
3G Watchdog. Guarding you against costly Internet overages. 3G Watchdog data counter monitors your Mobile Internet (3G/Edge/GPRS) data usage, shows a status icon (green/orange/red) in the notif bar and a detailed report page. Widget (2 sizes)
Network Signal Widget - Do you need a more precise way to know whether you are in a good signal environment? Is the default 4 signal bars shown by Android not enough for you to judge whether you can make that important call?
Use this high resolution graphical widget and get a good idea of the signal activity in just a simple 1X1 widget without taking too much space
5 VPN - Starting a VPN connection on Android is not very convenient. Normally it requires 7 clicks and writing a password. If you want to avoid writing the password, you can copy it to the clipboard, and then paste it, for a total of 11 clicks. With this application however, it can be done in 5 fast clicks and no password
Autoproxy Lite - The most complete proxier for Android. Autoproxy allows you to use Market, Gmail, maps or surf the web even behind the proxy from your home/school/office.
It works by creating a transparent/intercepting proxier running on your phone that redirects web traffic to your proxy
Alexa Rank Add-on for Dolphin Browser HD - This add-on shows you the Alexa ranking of the site and lets you know more info (popularity) about the site.
What's New in This Release:
· Fixed the overlap problem between text color and background color
What's New in 1
APNdroid - Toggle that prevents your phone from connecting to internet over 3G/EDGE/GPRS. This application modifies APN names and types by adding 'apndroid' suffix to them (you can edit them anytime in your phone's Settings).
NOTE: Uninstall with enabled internet access! Otherwise you will be offline, needing to change APNs manually.
What's New in 2.1.3 / 2
Network Widget - Simple widget to know active network information and to switch WiFi on/off.
Is your device on WiFi or data plan mode?
What is current IP address?
Click on network name to show preferences.
Click on icon to toggle ON/OFF WiFi.
Note: this is a widget, you HAVE to add it to your home screen