Older Verizon policy had inbound Port 80 blocked on residential and dynamic IP business accounts. However, Port 80 was open on business accounts with static IP addressing.
That policy started to change in 2009. Some subscribers reported the port was quietly opened. It appears the change was rolled out as part of network upgrades, so it did not occur all at once.
There has been no official announcement yet from Verizon, so you may or may not have a blocked inbound port 80. At this point, use it if you've got it. If you have to ask for it, Verizon may not give you the answer you're looking for. Yet.
You should also be aware that section 4.3 of Verizon's Terms of Service (12/5/2008) prohibit running a server on residential accounts, although no one here has reported having had an issue with Verizon over this.
You also may not exceed the bandwidth usage limitations that Verizon may establish from time to time for the Service, or use the Service to host any type of server. Violation of this section may result in bandwidth restrictions on your Service or suspension or termination of your Service.