From what I can tell, BitPim is not a new app as the original release dates back to 2003. However, there’s a new update out dated June 2005. BitPim in a nutshell:

BitPim is a program that allows you to view and manipulate data on LG VX4400/VX6000 and many Sanyo Sprint cell phones. This includes the PhoneBook, Calendar, WallPapers, RingTones (functionality varies by phone) and the Filesystem for most Qualcomm CDMA chipset based phones.

If you’re like me, you have every intention of keeping a backup of your phonebook, but the reality is that it doesn’t happen. Now I just need to get myself a USB to Serial cable so I can start using it (and make that backup, of course).