I have one and I love it. That said, there's really no way to put it down on a cardio machine in my gym - and I wouldn't want to hold it in my hands all the time.Is the Nexus 10 worth it? I'm thinking about getting it for when I do cardio at the gym on the Elliptical so I'm not bored to tears and hopefully pass the time faster.
Have you thought about audibooks? I got a whole bunch from audible.com (owned by Amazon) and they're pretty awesome.