ClockworkMod Tether is a brand new app from Android dev Koushik Dutta. It permits totally free tethering for Android telephones, and fairly surprisingly, doesn't require root privileges to operate.
The app can also be reportedly invisible from carriers, who received't have the ability to notice that your telephone has been used as a tether. That's as a result of as an alternative of working as a router, which adjustments the packets it passes on, it acts as a proxy; packets are handed straight away, with out routing.
Of course, if you're playing World of WarCraft it might be a bit suspicious, but it's a whole other kettle of fish for carriers to detect and (potentially) block this kind of access.
The app is quite simple to install – install the desktop application, install drivers for your phone (available easily for many common HTC, Samsung, Motorola and ZTE handsets) and plug in your phone. The app will be installed, and you're ready to get your tether on.
Tethering can be a lifesaver if you're trying to get some work done outside of Wi-Fi range, making sitting in a cafe with a coffee an even more lovely and achievable prospect.