The Amarok manual claims:
Amarok automatically shows the tracks from the server in the Media Sources -> Local Music pane and no further configuration is required.
But Amarok did not automatically work with no configuration:
What am I doing wrong?
I've confirmed that sharing is enabled in iTunes,
and that the share is visible in Rhythmbox,
so I believe the problem is within Amarok.
How can I make Amarok connect to the share?
The answer is sadly no. This will work between iTunes only.
In your link it mentions that the protocol "...was first used for the iTunes music player" but did not mention current support for accessing iTunes Shared music.
From: http://en.wikipedia.org/wiki/Digital_Audio_Access_Protocol
However; there are workarounds. (Which means not using iTunes)
You can use a diffrent Music Server that uses DAAP to send your music.
Then direct it to your iTunes music folder, from http://support.apple.com/kb/HT1391 the location of iTunes music (This worked on my mac, however I collected my music through iTunes through CD and not from iTunes store - not sure if it changes anything)
I tested out firefly for mac (looks like a dead project), but there are other music servers: http://en.wikipedia.org/wiki/Digital_Audio_Access_Protocol listed under DAAP servers