Not quite storage, but for those who have some old hardware around...
like I do...
Part of the deal is that I'm working on a DCPU-16 emulator (the emulated system in Notch's up-coming game 0x10c). Because I had the SIPP, and someone hooked a SIMM to a microprocesor similar to what's in the Mega to run Linux on it, I looked at interfacing it into the Mega.
Today, I finished the code, and it works nicely for 256KB SIMM/SIPPs. It's up on:
https://github.com/STrRedWolf/RAMtestI'm tracking my progress towards a DCPU-16 here and will push the code onto GitHub.
http://redd.it/uj4le