Updated May 1st 2015
Unfortunately no, the myRealPage listings are not currently built to be responsive by default. You do have the ability to add custom styles and allow them to be responsive however a developer may be needed unless you are very experienced with CSS
We do understand that this is not ideal and we are currently working to resolve this and offer you responsive listings and searches however since there are many many moving parts this will take some time. We do not have an estimated time for a launch given how unpredictable software development can be.