I think its a Verizon Issue because the dropped calls are happening on the HTC Incredibile too. The service this past month reminds me when I was with NEXTEL.
I've been having some phone call problems too. Alot of breaking up on the other end, and hearing the person I'm talking to suddenly start saying "Hello? Helllllllo?" I thought it was just .662 on my Tour that was causing it cause I had loaded it a few days before the problem first started. But it's good to see that it's bigger than my Beta OS.
And yes, it is very reminiscent of Nextel.... lol.
Oh, btw - I'm in Westchester County, NY (just to track the size of the problem)