If they can demonstrate flash pathways/interfaces that have mimiced what the microOS demonstrated, the list will be very long.
Start with Intel and Texas Instruments, along with portalplayer/Apple and then go from there.
You also have to consider all the handsets (cell phones) that have flash pathways...as very early on EDIG named cell phones as a market for their IP.
News on this IP front will be the most exciting development in years.
In the meantime, we wait for the eVU.