100% agree. It is no big deal to make smartphones really secure. The technology is already there with : high-end tamper-proof SIM card, embedded secure element (mostly used for NFC payment transaction) and ARM TrustZone. Technically speaking there is no barrier. The issue is around the business model.
--Just get a Nokia or Blackberry -- no one wants them, and the HUB feature on the Blackberry Q and Z series can store all your information on the cloud so if you lose the phone there are no data loss issues(provided you set a strong password and deactivate it when lost)
smart phone should be treated like a credit card (which is slowly becoming with all the apps payments)...registration, passwords, etc...people don't get harmed because of the credit cards they carry in their pockets
That would be great if remotely whole data can be washed out from the smartphone in case of theft. But it would be quite challenging for engineers to do so. But if that happens it would be so much helpful the the consumers as almost all your personal information is in smartphone.