How do I set this up? Do I need a separate service? I tried tethering & portable hotspot under Settings and it tells me I need to subscribe to Mobile Hotspot/Mobile Broadband Direct.
Settings > more > tethering&portable hotspot > pick from usb, wifi or bluetooth. | with the wifi option notice just under the wifi setup press and setup a passwd. Back out and then press/check portable wifi hotspot.
Any option works Ive used/use them on the go from time to time w/my nexus 7.
You do not need to pay extra it comes w/your account, if you kept your unlimt data make use of it before they yank it away from you.
hope that helped... enjoy
extra note:
http://yro.slashdot.org/story/12/07/31/2139246/fcc-rules-that-verizon-cannot-charge-for-4g-tethering
and one more:
http://news.cnet.com/8301-1035_3-57485518-94/what-verizons-fcc-tethering-settlement-means-to-you-faq/
Just google `how to remove tethering provisions`.
If the OP still has the unlimited data plan, they still need to add and pay for the mobile hotspot feature.