Maryfi - Turn your laptop into a Wi-Fi Hotspot

http://www.maryfi.com/

What is Maryfi?

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.

Maryfi - Turn your Windows 7 laptop into a Wi-Fi Hotspot