It affects them in that everytime an iPhone users text me a video I have to ask them to post it somewhere else so I can view it. The videos are so small and blurry I can never see what's happening in them. I[hone users are have unsent messages to android users without cell service which happens all the time and is confusing why some texts send and some don't and it's a function of the type of phone the receiving party has (?!)