Roadrunner turns images off by default

Earlier this week DirectMag published an article talking about RoadRunner blocking images by default. I did talk to someone over at RoadRunner and found out a few more details about this change.
What is happening is that RR is rolling out a new web interface. This interface has both a bulk/spam filter and has images disabled by default.
I do not expect sender to notice this change in the open rates of RoadRunner addresses. Most RoadRunner customers use their own mail client (Outlook, Outlook Express, Thunderbird, etc.) and not the RR web interface. The number of uses this change touches is a very small fraction of the RR users.