Software doesn't require it so far because these devices are "uncommon" (i.e. for example, not on server hardware, not usually virtualized). But guess what is

Software doesn't require it so far because these devices are "uncommon" (i.e. for example, not on server hardware, not usually virtualized). But guess what is happening now that MS requires TPM for Windows? All virtualizers now have some support for TPM. The time will come.