I have seen some questions arouse here that seem to still go unaswered.

First, I believe the best mode to transfer large files to the N770 is using NFS, since there is no need to install anything. At maemo wiki there is a howto explaining how to setup an NFS server in Windows machines as well, since the N770 can't do SMB. NFS is quite transparent and much easier to do than scp or taking off the RSMMC card. IMHO, of course.

Next, the "2x your RAM" thumb rule was valid for a specific platform at an specif time. Suppose you have 4GB of RAM in your desktop. Are you really setting up an 8GB swap file?

And last, command 'free' display real RAM (and swap if set up), whereas the GUI memory manager display (flash)ROM where the apps and OS is located, and henceforth also displays space available in the sym-linked RSMMC partition.