I have an Ipad2 and an iPhone4s. Both are setup to use the same computer for syncing with iTunes and both are setup identically as far as having the option turned on for Wi-Fi Sync. My problem is only the iPhone will still show up in iTunes when not connected to the computer but plugged into the wall. I can sync no problem with the phone. With the iPad, I am only able to sync when connected to the computer. Any ideas?