The Tap is only truly portable if you can use it when off of your home network. Connect it to home networks of friends, relatives, and hotspot networks, and you are in business to use your Tap anywhere when you are out and about with it.
I checked this out on Tap tonight in my house by connecting the Tap to the xfinitywifi hotspot network that is free for all Comcast customers. This network is broadcast all around the US from businesses and homes that have the leased router/modem combo from Comcast. So, it is readily available lots of places. I use it on my phone when I need Internet access and avoid using my Phone's data plan. The xfinitywifi signal is all around me in my neighborhood; in the homes next to mine on either side, homes across, and up and down the street. Lots of them. So, if I can connect Tap to this network, I can skip connecting to other networks of those friends and relatives who have Comcast w/xfinitywifi. I will automatically connect to the xfinitywifi signal coming from their Comcast router!
So, to set up and test this on the Tap tonight, I sat downstairs where the xfinitywifi signal from my nearest neighbors is strong enough to connect to it, even though there are two outside walls between our houses. Once connected, Tap played Prime Music and I even chatted with Alexa -- all using another network while controlling Alexa app on my iPad that was connected to my home network. All very cool, and tomorrow when I take a stroll around the neighborhood with the Tap, I expect to stay connected to xfinitywifi most all the time. BTW, just in case anyone thinks this is like "stealing" someone's internet, it is not. This is a Comcast feature for all its customers.
BTW, when I went back upstairs tonight and away from the strong signals below, The Tap soon lost the xfinitywifi signal, but the Tap just reconnected to my home Wi-Fi. This is less of an issue outside with signals all around.
So Comcast customers, if you haven't yet been connected to xfinitywifi on your phone or other devices, do so and be ready for Wi-Fi access almost anywhere you are.
Another advantage of connecting Tap this way, is I do not have to fool with tethering the Tap to my phone. I can just put Tap down on the table outside, be on xfinitywifi and play music and spend some quality time with Alexa, too.
Note to cable-cutters:
I bet you never considered that xfinitywifi is a nice perk of being a cable customer other than the video package one gets from cable. There is much more to cable than just TV shows and movies. I have not yet upgraded to the "new and improved" cable service which allows for streaming from the cable DVR in my house to mobile devices -- even remotely. All at no price increase to my service. I need to get this new service installed real soon.
BTW, although I have used MY ISP (Comcast) as an example here, YOUR ISP may have a similar feature for accessing the Internet away from home. If you haven't looked into this sort of feature being available from your ISP, you might want to. The steps and advantages described here are directly transportable to you ISP with a similar feature, or to any hotspot you want to connect your Tap to. Bottom line is you can easily use your Tap to it's fullest when away from home.