Why wouldn't they?
Why would they get trained for the I-phone? They weren't trained for the Driod,at least my local stores have no idea.Well Verizon reps were warned Wednesday will be a very busy for them. But most assume its because of whatever Apple will be announcing.
When Verizon gets the iPhone, one would hope that their stores would be notified and trained on it beforehand. They're not just suddenly going to have them in stock the morning of release and have zero knowledge of how to set them up for customers.
If it's just a "warning" that they'll have a busy day, but no details on why, it's not going to be due to new hardware coming in. Obviously I can't say it's because of 2.1, but a change to something they already offer is more likely. It could be as simple as new TOS, or the new pricing they've been advertising, or as complex as network infrastructure maintenance, something that will generate lots of customer calls.