I think the cache is a Linux thing. The Sharp ROM does it too.
Just consider it \"free\" space. The OS caches lots of data in case you use it again. It speeds things up. The cached data will be dumped from memory if and when you need the memory.
So cached RAM = free RAM.
At least, that is what I have read and have been told.
12MB used is very little I think! I almost always show 16 MB used. I have a 760 though, but I don\'t think that makes a lot of difference.
On another note, I have heard a lot of people say the new Cacko ROM is slower than previous ones. I guess it has LOT of cool features that somehow slow it down, though I can\'t understand how things that are not loaded in RAM would slow it down. Not sure.
There are other kernels out there that can really speed up your 700 though. Do some looking for the \"Sukoshi\" kernel. It ditches some of the \"slow downs\" built into the Sharp kernel for the C700 that supposedly make it more stable.