Some more confirmations from somebody else? Looks like good and easy method.
I would (personally) avoid this - if the wires cross somehow you're blowing the vid interface rather than your VGA converter. Use the VGA converter that comes with every video card, and just put the resistor between pins 1 and 6 - you only need one resistor (there is no benefit to 3, just costs 3x as much).
W
A standard HDMI port outputs digital in the block connector and standard analogue VGA on the cross connector. All a HDMI to VGA plug does in put the analogue connectors to a VGA pin format.
Analogue VGA outputs a Red, Green and Blue signal, known as RGB. All you need to do is put a resistive shunt across one channel to make Windows think you have a monitor attached.
Putting a resistor across the R, G or B channel (or all 3 if you mistakenly think it will make a difference) has the same affect whether you use the HDMI analogue connectors or the VGA adaptor analogue connectors. If you cross the pins on the HDMI to VGA adaptor it will have EXACTLY THE SAME AFFECT as if you'd crossed them on the HDMI connector.
The only difference using an adaptor has is that it may cost you more money.