Cisco Global Internet Speed Test (GIST) for your mobile device

The Cisco Global Internet Speed Test (GIST) app is a free and simply app that you can use to test your network network (3G, wifi). It will provide you with the speed in kbps and catergorises the typical connection type it can handle. You can then use it to compare previous results or results compared to other locations. Good thing is that its available for your iPhone, Blackberry or Android device.

Note: you'll need to turn on location services for the app.

More details can be found there: http://ciscovni.com/gist/index.html

Although the simple test is quite handy, seems like the charts and graphics don't always appear correctly and takes some time.

WifiKill - Kick users off the wireless network

Was playing around with my Android phone and came across this app called WiFiKill.
It's a simple app that allows you to "kick" users off wireless network that you are in. You'll need to root your android device before you can install the app, as it needs root access.

Details and download can be found on their project page, same guy(s) that do faceniff:

 http://forum.ponury.net/

I tried this at home and it worked like a charm. Clean user interface and easy to use. Simply select the client you want to drop and that's it.  I tested this on an enterprise wireless network and it failed to work.
My suspicion is that the app uses ARP spoofing and hence why it doesn't work on enterprise networks that have DHCP and ARP protection. Will need to do some packet captures to confirm this.