I have my Macbook connected to the Internet via a mobile USB modem. I'd like to share this connection with my iPhone. I tried this http://forums.macrumors.com/showthread.php?t=281234
but don't see the Macbook from the iPhone when I try to join a network. I'm using OS X 10.6.3.
In the sharing section, I have "Share your connection from" set to Airport. The only option under "To computers using" is Ethernet. However, I do want to share from the Macbook wirelessly. Any suggestions how I can get this going?
Also, where are the encryption options as mentioned in the article.