Imagine if all email was identified as coming either from a TPM machine with a know identity or from an unidentified source. In such a world, most email users would delete the unknown suspicious emails that includes spam along with nefarious others. Thus, a legitimate email user would perforce require a TPM machine in order to ensure their emails got through. The same could apply to the web. No access unless you can prove you have a known identity. (which is different then telling them who you are.)
Given the billions of dollars of damage that worms and viruses have caused, it isn't a stretch to imagine those parties that control the web might be open to the concept of trust at the edge.
I wonder what the adoption rate for business and personal PC's would be in a virtual world in which a trusted identity was prerequisite for participation? Darn near 100% I would think.
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