Okay From Verizon Wireless Website:
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Email and Web for Smartphone
Use your PDA/Smartphone for personal email and Web surfing.
- Access up to ten POP3 and IMAP email accounts, including Yahoo!® Mail, AOL® Mail, Windows Live® Hotmail®, and Verizon.net.
- Easy email account setup.
- Unlimited Web Browsing
- Voice Usage: Per your voice calling plan.
and
Unlimited Data Usage
Synchronize your mobile PDA or Smartphone to your PC with PDA/Smartphone from Verizon Wireless, providing over-the-air synchronization of e-mail, contacts, calendar, and tasks. Service available within the NationalAccess or, with certain devices, the Mobile Broadband service area.
I am thinking if we use Google Maps, Bing Maps, GPS, etc. That's not surfing the web but pulling and pushing data, so that's an extra cost. But with the unlimited plan, it's included in the price.