People in the UK where the mobile market is more open won't get this. But here in the US nearly every handset is exclusive to one carrier. Google has been a champion of open access networks. A readily available, decent smartphone handset offered SIM-free could help to open up the market. Although at present, a SIM-only deal is no cheaper than getting a subsidised handset, possibly more expensive even. If this helps to open up the market (SIM-fee iPhone anyone?) it's good by me.