IDEN Companion Pro
Motorola has discontinued support of Companion Pro as their new but inferior "iDEN Phonebook Manager" software has been released.
Download the latest version now before they take it off the website... Motorola bloatware at 91MB: http://idenphones.motorola.com/iden/support/software/companion_pro.jsp
You can still use the new Phonebook Manager, if you don't care about speed dial ordering (like holding "1" to call home, etc.), or cut-and-paste to copy contacts from an Excel spreadsheet instead of entering 1 by 1 with their awkward interface.