[sugar] Memory allocation indicators

[Kent Loobey]

> | Hmm, one could divide the total available memory into pages (say 16KB
> each).
>
> | Then each activity could specify the number of pages it needs to run. 
> | You could then use that number to inform decisions.
>
> "Paging" is handled at the kernel level.  Yes, Activities could indicate
> ahead of time how much memory they require.  That is precisely the
> proposal I was discussing.

I think the XO doesn't page since I think it doesn't have a swap file.  Is 
this incorrect?