When I used OS X 10.5 Leopard, I had “only” 374 MB available for applications once all my login items loaded. When I bought my Mini, it had just 1 GB of RAM, and the Intel GMA 950 graphics uses 80 MB of that. Memory Cleaner is an app designed to make more system memory available and thus speed up your Mac by reducing dependence on slow virtual memory. I’ve been using Memory Cleaner on my 2007 Mac mini for quite a while now, and it’s about time I reported my results.