Depending on your Linux comfort level, it's reasonably easy and you only have to do it once.
If hou haven't already, get a Midori build environment set up. There is a tutorial on www.ia1hacking.com under the Linux OS-Specific articles.
Hex-edit byte 0x1fd in midori/target/cramfsboot.bin from 0x03 to 0x16 with your favorite hex editor, or use the following steps to do so:
xxd cramfsboot.bin > cramfsboot.bin.tmp
<find the byte, change the value, save and exit>
xxd -r cramfsboot.bin.tmp > cramfsboot.bin
Find the text 'hda' in the following files and change any references to 'hdc':
Do a build, copy it to a CF and boot it up.
Another benefit of using a CF is that you can also modify the build for a larger card, giving you more room on the filesystem (say, to add RealPlayer, or other choice linux apps).