Just released mitmproxy 0.2. Changes include:

• Big speed and responsiveness improvements, thanks to Thomas Roth
• Support urwid 0.9.9
• Terminal beeping based on filter expressions
• Filter expressions for terminal beeps, limits, interceptions and sticky cookies can now be passed on the command line.
• Save requests and responses to file
• Split off non-interactive dump functionality into a new tool called mitmdump
• "A" will now accept all intercepted connections
• Lots of bugfixes