I just got the iphone this weekend. had an incase slider and zagg all ready to go. Installed the zagg (everyone is right, this is a bear to put on!) and let it dry overnight. installed the slider, and no problems. There is enough of a gap between the zagg and the incase that they do not touch. just be careful when you get it close to being fully on - you could catch near the top. If I could do it over, I would have pulled the cutouts for the ear hole and the home button out prior to removing the paper backing. make sure you spray tons of the spray onto your fingers. You can't use too much!