<br>For what it's worth, my Acer Iconia A500 (android or windows models available) has a USB host port that works with the common serial port adaptors, plus bluetooth and wifi.<br><br>I could well imagine a TNC connected by bluetooth or serial, leaving the other port available for other sensors.<br>
<br>I have not tried hubs or multiple serial port devices yet, and I don't really expect any success with that. <br><br>It's got a micro SD slot that allows up to 32G for data or application storage.<br><br>Battery life is excellent, FAR outstripping my android phone with the largest battery available for it, and minimal phone usage. The GPS isn't wonderful, but it does achieve lock in my ground floor apartment.<br>
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