Yes it is a Samsung mommet. I noticed it first going out to western Wisconsin a couple of weekes ago. It would go in and out and beep each time. Never before did this happen. Now it also goes in and out at my work and home here in Silver Lake, WI. I get one bar and it goes in and out also. It use to be a least two! Thanks!
Here in SoCal, Since switching from the Palm 755 to the Moment I have noticed a significant decrease in my coverage. I'm often on 1-2 bars and 1x with the moment. This might explain the horrific battery life. It's almost like being on Sprint circa 1999 where coverage was very lacking.
I have noticed the in and out service beeps more frequently as well. This has not changed with the CL14 or 2.1 Updates.