Am I losing my memory?

I tried to install an application yesterday but it said there was not enough memory. I deleted some files etc... Then I looked in the Memory app in Control Panel. I don't remember what my total was when the N800 was new but now the details have
Storage memory in use: 23.8 MB
Storage memory available: 19.2 MB
so 43MB in total. Is this what others are seeing?

using latest firmware 4.2007.26-8