Interesting about the FACEBOOK use being a large memory use... We are also using the Verizon MIFI unit but with a grandfathered 3GB dataplan. We just barely make it each month just checking in with the kids, paying bills, and some limited search on the internet. I am usually on FACEBOOK at least once a day checking in...
We are really getting the itch to do some downstreaming of TV programs so will probably go with the MILLENICOM MIFI 20GB data plan using Verizon one of these days. I tried downstreaming a TV program a couple of times and used up almost 1GB of my data plan real quick haha...
I hear folks using the JET PACK and having good luck doing the TV programs over the internet...
Roy Ken