Humminbird owners need to go to the Humminbird website and download the FREE software for Down Imaging. It's available now!

Yes Jack. Here's some of the breakdown

Free Download:
997c SI Combo Update (version 4.750 - 0 bytes)
Description:

1/12/2010 12:00:00 AM - v4.750 Adds Down Imaging. Adds LakeMaster compatibility. Adds GPS improvements. Adds new 2D sonar color palettes. Adds New SI sonar color palettes. Improves trolling motor noise rejection. Fixes Track offset issue. Makes depth alarm Persistent over power cycles. Supports new NVB maps w/o Canada data. (NVB models only) Automatically restores defaults when reprogramming unit. Adds additional AIS message support. Fixes Disabled GPS output. Fixes Snapshots not displaying in POS mode. Fixes Navionics library drawing when no map is available. Fixes various cosmetic and minor operational defects.

I just got done downloading the upgrade on my unit and I can't wait toget on the water and try it out. It was free !!!!!!!!