I mentioned this at pdaphonehome forums a few days ago and I think I am right about this theory I have.
The i770 (Samsung Saga) is not a replacement for the i760. It's a replacement for the Treo 700wx. Palm is on a huge downslide, and the 700wx has been on Verizon's shelves for a long time and is outdated. This is a stable, solid front keyboard device that VZW needed in their arsenal to replace the aging Treo.