Nokia :: N97 : C Is Fast / E Is Not - What To Install On C Vs E Drive

it's obvious (although nokia doesn't document or express anything) that the ever so precious and small c-drive on n97 is a fast memory sitting on a fast and wide parallel type of bus - and the e-drive or "massmemory" has substantially slower access times, perhaps sitting on a limited speed serial type of bus. i believe many of the problems we experience with n97 is access violations, timeouts, etc, is due blindly installing everything on drive e in a desperate attempt to free up memory in c

i hope someone could have factual knowledge on what type of apps that either need to or should go on c instead of the slower e?

my best guesses has prompted my to install the following on c (to avoid any issues and to speed up the device): apibridge, communities client beta installer, communities, contacts group ds plugin, energy profiler, facebook installer, facebook, gmail, gravity, hs uutiset (widget), mediads plugin, mms ds plugin, nokia custom dictionary, nokia maps, ovi store client, point & find, seconupdater, service controllers, share location agent, share location, share location widget, sms ds plugin, web browser, wordlists recognizer dll, Internet

any apps that does not need to be on c to run fast and smooth?i'm down to 28,0mb on c, but that should be enough?i'm also thinking about moving my sms to c to avoid the access errors seen so many times (at least with fw 20)?