Hi Jim,
Thanks for writing to us. Text size changes are local to your device and therefore can not be synced on all the connected devices. Edge Inspect syncs only HTML/CSS content. It enables you to connect multiple devices to your computer wirelessly. As you visit web pages on your computer, the synced devices display the same content. To know more about Edge Inspect please visithttp://www.adobe.com/inspire/2012/12/web-designs-edge-inspect.html