dig, you write:
"...Indeed providing a client aspect, a bundled client aspect to any ARM device seems ultra-speculative..."
WOA requires a MTM. Samsung, rumors have it, will be one of a few OEMs coming to market first with Windows RT phones and tablets.
An MTM "behaves" just like a TPM, as a matter of fact, it is based on the TCGs TPM specifications with a few additional extensions needed in the mobile space. It needs to be managed - just like a TPM - and is cross compatible with the TPM.
But, yes, the "Samsung 8K" was just addressing TPMs.