Although companies are reluctant to build products around immature or incompletely understood materials and processes, the size of the non-volatile memory market is such that companies are also fearful of missing out on a potential next-generation driver for a multi-billion-dollar market.More details over here.
The buzz around RRAM has already stimulated dozens of patent applications in the United States alone and numerous semiconductor companies are researching the topic and developing proprietary oxide films for inclusion in standard CMOS processes.
Resistive RAM to be available in 2008

A report from Web-Feet Research says Resistive RAM (RRAM) could come to market as a test product this year. This is a new high density, low cost and low power consumption non-volatile memory that could be a replacement for flash memory.