Doma
While I don't underestimate the efforts involved, I do think that another software firm who is part of the TCG and who has a year of background and another year to develop a solution, could produce competitve offerings. I also think that the Infineon software group could be given permission to build software that works with other TPMs and try to sell to those TPM manufacturers or to the PC OEMs.
The software group appears to be in a separate business unit and as you know, one of Infineon's units (not sure which has ownership and decision power) licensed their TSS and other related work product to Broadcom, leading to their replacement in hardware but maybe their inclusion in the next generation of HP Protect Tools.
Wave is positioned well right now and given the decision process at enterprises, maybe locked in whenever they activate, but Wave is so weak financially that they have less ability to respond to events.