I just a look at all of the new features of the most recent Humminbird operational software, v. 4.700. Check out the first of those features, listed below:
Adds support for LakeMaster chart cards.
Adds new SI sonar color palettes.
Adds new 2D sonar color palettes.
Improved GPS performance to provide higher chart update rates.
Corrected problems with depth offset algorithm.
Corrected SD card reporting incorrect size.
New menu item for sound control.
Corrected issue of GPS output becoming disabled in certain navigation modes.
Corrected problem of snapshot not functioning in POS mode. Fixed centering issue when changing chart orientation. Corrected problem of displayed track becoming offset from boat.
Sonar processing improved to increase trolling motor noise rejection.
Fixes various cosmetic and minor operational defects.
As soon as Lakemaster releases the Humminbird-compatible ships, Humminbird users will be ready!