Tetherbot is an experimental SOCKS proxy and Port Bouncer that should allow you to connect your laptop to the internet using the internet connection (EDGE, 3G or WiFi) of your Android-powered phone.
Usage instructions are available here
Droid Wifi Analyzer - Analyze WiFi with your phone
This app shows information about in-range access points. choose from multiple views to see current network performances. This app is also a Wifi manager, you can see access points list and connect to them.
Show and Analyze the wi-fi channels around you
Wifi Toggler is basically a replacement tool for the default search button on your Android phone when you long press it. It allows you to quickly toggle your wifi from ON to OFF and vice versa.
Once installed, press and hold the search button on your Android phone and a dialog will appear. Then select wifi toggler to toggle between your wifi states of ON and OFF
On Air allows you to easily transfer files over your Wi-Fi connection by accessing it as if it were a drive, from within your Finder.
Currently Mac is supported through AppleTalk, Windows and Linux are supported through WebDAV.
Please ensure you have a stable wireless connection while using On Air
Sensorly Map Viewer - How good is your cell/mobile network coverage where you need it?
Is your favorite WiFi network going to be available at your vacation spot?
See the answer with this application and join us to build worldwide coverage maps.
(Data collection is configurable and can be turned off
WiFi Free for Android - WiFi Free is a WiFi hotspot finder for Android. The app scans wireless networks in your vicinity or any given location, and shows you on a map the most relevant WiFi spots - both free and secured.
The application is 4square based and if you have a 4square account and are not bothered by the occasional ads, it's absolutely free
WiSync - Automatically enable and disable synchronization based on your WIFI connection status. WiSync can save money for those without unlimited data plans, out of the country, or when simply data roaming. WiSync does not interfere with independent synchronization efforts and can be easily disabled
