Yes the session will actually remain on the server as all the browser does is
actually force a new session.

Note. since writing the above I have also since found that this does not work
correctly as whenever you "touch" a session with this method the session is
renewed and thus could feasibly never timeout.

I suggest a mixture of approaches but mainly using application variables is
the best way at present. You can access some of the variable information via
trakcer method but anything other than the lastaccessed or the key will result
in a restting of the session.

Thus you could hold a reference to the key in the application variable should
you want to find out last access information.