PdaNet!

Carrier-independent tethering for Android and BlackBerry smartphones. EasyTether supports Windows, Mac OS X, Linux computers and Android tablets. Works over USB and Bluetooth.

Win Hotspot is portable WiFi hotspot application has inbuilt WiFi Scanner to list Channel ,Signal % etc. It Also has bandwidth meter and WiFi Repair Tools.

TetherMe enables the native tethering feature on all jailbroken iPhones and 3G iPads, so that you can tether your 3G connection for free. It works by telling the iPhone to allow tethering on any APN that is used for iPhone data. You will not be charged extra by your carrier, as all tethering data will appear to come from your phone itself.

Share your mobile connection via WiFi. Mobile Hotspot is a free alternative to Joikuspot - it turns your N900 into a wireless hotspot that can be used to access the Internet by other WiFi-enabled devices.

iPhoneModem enables you to share the Internet connection of your iPhone with your Mac or PC. It's a small and simple application that anyone can use in a few seconds.

Maryfi is a free and easy to use software router for Windows 7 computers. With Maryfi, users can wirelessly share any Internet connection: a cable modem, a cellular card, or even another Wi-Fi network. Other Wi-Fi enabled devices including laptops, smart phones, music players, and gaming systems can see and join your Maryfi hotspot just like any other Wi-Fi access point and are kept safe and secure by password-protected WPA2 Encryption.

This program enables tethering (via wifi and bluetooth) for "rooted" Android phones. With Wireless Tether, your laptops and other devices can connect to your phone's 3G or 2G connection over WiFi.

Hotspotio is a slick Android application that allows you to share and connect to WIFI connections with your Facebook, Twitter and Linkedin connections in return for favors.You should have a favor in return when sharing WIFI with your connections, right? Sharing WIFI lets you define what kind of favor you want in return for being awesome. A drink, a hug, a like on Facebook or something else. People connecting to your network will return you a selected favors for your awesomeness

Share your Internet through Wi-Fi.

Turn your phone to an open WiFi HotSpot.