As we mentioned yesterday, AT&T is catching grief for not being ready to support iPhone tethering or iPhone MMS, like a significant number of other iPhone global partners will be when the new iPhone 3.0 software update drops. A source tells the Boy Genius Report AT&T has to manually remove all the "Opt Out MMS codes" on each account, and that tethering is coming someday -- if you're willing to pay $70 for an "unlimited" (read: 5GB) broadband and tethering bundle. Meanwhile, there's also a lot of grumbling from iPhone 3G owners who are (for some reason) confused as to why they don't get the new subsidized iPhone 3GS prices while still under contract.