dgrauch-
I'm starting to wander like you. At mobilespeedtest.com I get 645277.5 kb/s--that's not a typo everyone. That's equivalent to 78.77 MB/s. It continues to read,"The average speed for your ISP (Verizon wireless) is 567.02 kbps. Your speed is 645277.5 kbps.
How fast are the other carriers?
Sprint average speed: 516.08 kbps
Verizon average speed: 567.02 kbps
AT&T average speed: 694.39 kbps
T-Mobile average speed: 793.73 kbps"
How can this be? 
I haven't fooled with anything... that I know of. Get this: I ran it a second time...
and it read,"Your current bandwidth reading is: 2048.00 Mbps.
------------------------------------------------
which means your can download
at 256 MB/sec from our
servers."
People, that's almost identical to using an LTE standard on UMTS/4GSM family having radio technology of OFDMA/MIMO/SCFDMA.
And it deffinately doesn't feel like my phone receives information THAT fast. I ran a speedtest on
www.dslreports.com/mspeed?jisok=1&more=1 and got a rating that seems to be more common: 663 kbps. PLEASE, someone, tell me there's a simple explanation for those results.