Okay, following another call to a Verizon rep on #611, and I need to make a correction and add some addition information. And MrWizard, thanks for helping clarify some of the confusion I have caused.
You are correct anchor, I misunderstood what Verizon told me this morning. You can elect to have BBA (Broad Band Access) on a compatible cell phone or Blackberry (not sure about PDA's). You will have a Verizon phone account and the BBA feature is added to your existing service. You use Verizon Access Manager on your laptop to communicate to the cell via a tethered USB cord. You can cancel or activate this feature at will anytime you want without charges. It is "that simple".
If you do not use a cell phone or Blackberry with your laptop, you must have an air card to connect to Mobile Broadband Access (MBA). This requires a separate Verizon line with a separate contract commitment. You cannot cancel or reconnect without charges and/fees as Clint mentions above unless switching plans like MrWizard said.
Verizon Access Manager is, as I stated before, the source of the software and drivers you download onto your laptop from vzam.net (for free).
This makes me wonder why anyone would want the RIMM MBA service with an air card if you only use the connection on occasion.
I really hope I got it right this time, but every phone call with Verizon flushes up something new so I can only hope what I am telling you this time is accurate.