Are there any companies that offer unlimited cell phone plans?

Metro PCS or Cricket they both start at $35-$45 unlimited everything.(CDMA)

Boost Mobile is Next in line at $50-$60 a month (CDMA/iDEN network)

Simple Mobile is $60 flat UNLIMITED EVERYTHING (includes taxes ) (SIM CARD/GSM Technology)

this also includes iphones, most HTC phones, and any phone with a sim card slot AND DOES NOT HAVE TO BE Unlocked.