Enhance "Transparent Torification (Requires custom transproxy or Tor router)" in Tor Button.

I suppose you don't want people, who are behind a (Tor) transproxy or Tor router, to use Tor over Tor. Currently there is no standalone Tor Browser (#5236 (moved)). So if they install Tor Browser, they use Tor over Tor (works, slow and recommend or advised against?). Suggestion: once Transparent Torification is activated, Tor Browser instantly starts standalone, without starting Tor or Vidalia.

Ideally one could select this feature before Vidalia and Tor try bootstrapping through the Tor proxy, e.g. by passing an option to the launch shortcut/script

There is currently a workarround in the wiki. ("Edit 'start-tor-browser' script and change the line: './App/vidalia --datadir Data/Vidalia/' to './App/Firefox/firefox -profile ./Data/profile'") But that can't become the official recommendation to use Transparent Torification?

And how will Transparent Torification be compatible with SOCKS username for stream isolation? (#3455 (moved)) There is no documentation about Transparent Torification. What is the current implementation... Will it simply disable the proxy and work as a normal browser without proxy settings? Then SOCKS username for stream isolation wouldn't be usable with Transparent Torification.