The ARM soft core would not necessarly be the place to look.

However, Actel hardware has been on the scope since they came out with their flash based FPGA's.

This is the latest offering.....Igloo....

"When talking about the power consumption characteristics of flash-based FPGAs, it is important to recognize that there are two significantly different programmable logic architectures that are labeled "flash FPGA." Actel's flash-based FPGAs use non-volatile flash for the actual configuration logic such as routing.

Other "flash" FPGAs are actually more of a hybrid architecture: the configuration logic itself is volatile (SRAM-based), but the configuration data is stored on-chip in a flash memory. In those devices, the configuration is quickly loaded into the SRAM elements from the on-chip flash at startup"

"are actually more of a hybrid architecture:"....this is some what of a misleading statement....SRAM based systems are not hybrid architecture...they're the norm.

Actels non-volatile would be more of a hybrid architecture....they have eliminated the normally associated RAM. Eliminating the RAM with it's needed refresh , as I posted earlier today, saves power.
www.fpgajournal.com/articles_2006/20...

doni