3G Traffic Pro is the best choice to count mobile internet traffic and save battery.

A task manager application which monitors running processess and their memory usage. Allows killing of selected processes and remembers previously killed processes.

The most full-featured video player for h264 and 3gpp movies on your sdcard!

Please read the application web site about the video capability of the Android platform: http://www.hyperaware.com/android/video-player/

Paid and free trial versions also available on the Android Market.

If you are looking for a calculator, be it scientific, statistical, or simple public school level but the RPN and emulating HP/Casio interface makes whatever you found worthless, then this is what you look for.

File management app that let you copy, swap card, and even copy files in batches. On top of that, built-in FTP client.

Advanced Touchpad turns your Android device into a wireless touchpad (mouse) and keyboard to control your PC.

✓ Two-Finger scrolling.
✓ Pinch To Zoom.
✓ Vertical and horizontal scrollbars.
✓ Tap lock.
✓ Wireless keyboard.
✓ Auto connect.

AirPlay and DLNA/UPnP Player

Trial 3-days;

aiSystemWidget is system monitor utility that provides newest, innovative way of monitoring your Android based mobile device system resources, like Memory, CPU, Network traffic, Battery usage and etc.

Wake up with elegance. Designer clocks and smart algorithm for alarms.

Wake up with elegance. Designer clocks and smart algorithm for alarms.

A variety of powerful system tools and utilities to get things done on Android.

If any application is running or on screen,
Always check the date and time when you shake
The date and time will appear.

A graphical battery widget for your homescreen with a selection of beautifully rendered skins.

Beautiful battery level widget for your homescreen!
Choose from multiple skins - have an apple being eaten, a sun or a scifi circle!

A remote GUI for your aMule server.

    安安卜是一款集文件管理、任务管理、来电防火墙、短信过滤、网络管理、数据库管理、垃圾清理、开机加速、内存管理、监控器于一体的Android管理软件，全面管理android系统问题。
    AndBox is a set of files management, task management, call firewall, SMS filtering, network management, database management, garbage clean, boot speed, memory management, monitor management software, Overall management of the android system problems.

More http://code.google.com/p/andbox/
https://www.slideme.org/user/18222/applications/18222

AndFire is a android firewal software,It support to message filter,block calls,app firewall,ftp pop3 smtp block and virus firewall.You can block some network application software to help you save flow!

AndFire是一款Android 防火墙软件，主要支持黑名单信息过滤，阻止来电，应用软件阻止网络，FTP，POP3，SMTP阻止，病毒防火墙等，你可以阻止一些联网的应用软件，帮助你节约网络流量！

This application allows:

1/ check of your phone sensors
2/ Centralized Volume manager (alarm, ringer ...)
3/ WIFI access points level cheker
4/ GPS + Google Maps localizer
5/ Battery level checker + screen timeout controller (mainly for an optimal battery life cycle , i.e charge it until 100% and empty it until 0%)
6/ Process checking agent which allows tracking all processes running on your phone and monitor/diagnostic memory usage.

AndPizza is an Pizza/Egg-Timer for Android. The time can easily be adjusted to a desired duration. When the time ran out, the phone will vibrate and an alarm will sound.

Android Assistant

Android Assistant is a powerful tool for browsing information on the Android platform,. This app can be used to view software information, hardware information, running services information, and network information. You can also use it to view the file system. - Access your Android device information - View software and hardware information - Explore your file system.