While it is possible to simply create a symlink, many, if not most, distros these days put /dev on a virtual RAM filesystem, and any changes you make will be lost on the next reboot.
The proper way to change a device entry is to use a udev rule. And even then it's generally better to leave the original as-is and tell it to simply create a symlink to it with the name you want.
Last edited by David the H.; 12-26-2011 at 06:43 AM.
Reason: minor wording change