Last night, I removed the 1GB stick from my PPC Mac Mini and put in the stock 256MB RAM. From the Mini's perspective, this will be the smallest amount of RAM ever used. Saucy installed, although I have no clue how long it took (less than 8 hours, though). The process appeared to be frozen at times, not even letting the cursor move. I went to bed letting it install and woke up to the "restart now" screen. With my limited-RAM system now, I will install Raring and see if there's any difference.