Good to see you posting again,
QuietLion.
This is what I found on the Carnival site:
"To access the Wireless Internet Service, the guest’s laptop must be in relative close proximity to a Wireless Access Point. The specific locations of access points vary from ship to ship. A complete list of these locations can be obtained from the Internet Café."
My travel agent says that Silver Seas has high-speed internet access in the rooms, but it is sketchy because of all the steel in the construction of the ships.
It is certainly something that all the cruise lines are working on. Can't wait. We are now Platinum on Princess so we do get some free internet access.

Sadly, it is not unlimited anymore.