Is it possible to be in full control of what applications can make outgoing internet connections? I was thinking of something like Firestarter or Comodo firewall -- so that each time an application wants to access or send data out, you are required to approve or deny it (and optionally elect to "remember rules" if it's OK). Is there any such tool available for N900?
(Yes, I know the device asks for an internet connection when the first app needs it and you're not yet connected... but that's not what I'm looking for.)

i dont think there is something like that for N900

Obligatory post:

http://en.wikipedia.org/wiki/Iptables - check this out

I'm familiar with iptables, but I understand it's a sort of a front-end that would be required for this purpose (i.e. intercepting outgoing requests and asking you what to do before allowing anything).