AT&T FreedomLink users can pay an extra fee to watch a package of 15 TV channels from MobiTV: The live streaming video service will be available for $11.99 per month or $5.99 for 24 hours at the 7,000 locations that AT&T operates or resells in their home or "Basic" network, mostly UPS Store/Mailboxes Etc., a couple coffee chains, McDonald's, and Barnes & Noble; a number of airports are also included, which seems like a more likely place for people to use the service occasionally. AT&T resells access in their Premier network (which includes hotels and roaming partners) at an additional fee for Wi-Fi service.
The press release says that MobiTV is available from the Wi-Fi portal page, which implies that you can purchase MobiTV service separately from Internet access. I'll try to get a clarification.
MobiTV provides service from MSNBC, ABC News, CNN, Fox News, Fox Sports, ESPN, The Weather Channel, NBC Mobile, TLC, and The Discovery Channel among others.