That's a good question - I'll give it a try.

I have a Powerbook G4 Titanium with the original 802.11g Airport card, and Ken has a new MacBook Pro with the Airport Extreme 802.11g card.

If we get it working, we'll post instructions.

The basic strategy is this:

1) Configure and connect your Mac to a wired network
2) Open the "System Preferences" utility
3) Select the "Sharing" panel under "Internet & Network"
4) Select the "Internet" tab
5) Select "Built-in Ethernet" from the  "Share your connection from:" popup
6) Select "Airport" from the "To computers using:" list
7) Hit the "Airport Options..." button
8) Set the "Network Name" to something rational
9) Set the "Channel" to "Automatic"
10) Set the encryption settings as desired - remember you'll be configuring the chumby using these settings
11) Hit "OK" to go back to the "Sharing" panel
12) Hit the "Start" button.
13) Close the "System Preferences" utility

On your chumby:

14) Open the Control Panel by squeezing the chumby
15) Select the "Settings" button
16) Select the "Network" button
17) Configure the network to match the above settings

Here's the caveat - if you're using a newer Macintosh, the Airport is very likely 802.11g-only, and the current firmware in the chumby can't handle that.  As of today (1/26/07), we're finalizing a firmware upgrade that should fix this problem.  We will be offering this update both as an over-the-air update, but for those of you with network problems, you will also be able to do it using a USB mass storage device.  Stay tuned on this forum for information about the update and how to apply it.

One thing that's a little tricky: I think the only options for encryption using this method are "none", WEP-40/64, and WEP-128.

However, it wants you to supply the password in text - however, there's not such thing as WEP ASCII.  Each vendor implements the conversion of text to hex differently, including Apple.

So - in the password field, if you just enter some text, it uses Apple's proprietary conversion method.  However, if you enter the password in quotes, it uses the ASCII codes for the characters - for instance, the WEP-40/64 password "01234" would be 3031323334 in hex.  If you want to enter the password in hex directly, you precede the hex digits with a dollar sign ($).

A lot of corporate networks have very complicated wifi authentication.  Once you get into the realm of WPA ("Wi-fi Protected Access"), things get messy.

The driver for the wifi dongle only supports WPA-PSK ("pre-shared key"), which is what you commonly find on wifi access points designed for home use.  It's possible that your company is using one of the more complex variations of WPA.

If so, you might have to try to convince your IT person to allow you to run another access point with a simpler authentication system, and filter by MAC address.  You can read the MAC address on the back of the dongle.

So, question to chumbians.  I can connect via sharing on mac at work but failed to connect with chumby.com
So I setup an wireless access point with the same results.

Is the chumby connecting on a weird port that my corp firewall is blocking?

I can ask for the port to be opened or find some other way to dev at work - thanks