The first iPhone was released to the public Was the first phone whose software was designed with the users in mind. The first Phone to have easy access to Music, and make checking the web and checking voicemail easy. Apple sold over 10 million iPhone 36 units in only 5 months The importance is this is that this affected the entire world. Over 700 million people have iPhones now. Apple is one of the richest companies being worth 1 trillion dollars.