Hmm, at first glance sounds like a good idea, however our experience with iFly over time has shown us that many airports have multiple runways - which might be a bit confusing when looking quickly at the iFly display during setup for a landing (we're all looking primarily out the windshield, right?)
Might I suggest that having just the runway you've selected to land on based upon your observation of wind direction/strength whether obtained from metars/asos/awos and or visual observation might lead to greater situational awareness during an approach? And in the event that your preselected runway (based upon weather reports or observations) is incorrect or changes at last minute, then a go around is in order which would also allow the pilot to change the preselected runways while setting up for a second approach.
Finally, I'd acknowledge that sometimes the winds are calm - providing multiple runway choices. In that case, selecting multiple runways makes all kind of sense unless the airport has published calm wind runways or the local traffic commonly uses a particular runway during calm wind conditions.