I think Anonabox will have more success than Safeplug because it's open source. Selling a black box to the privacy conscious never sounded like a good idea.
That's a huge and critical difference. Open source down to the hardware is the only way you can be sure that what you're getting is actually Tor and not Tor + secret backdoor. (Though I suppose you still have to trust the hardware manufacturer, but the buck does have to stop somewhere.)
This is mentioned in the article including a couple points about the size (safeplug is twice the size so less convenient for taking with you) as well as the security flaws found in September.
The kickstarter page makes no mention to other similar products, which to me seems pretty dishonest. Nobody uses the "Risks and challenges" section correctly.
http://www.technologyreview.com/news/521676/online-anonymity...
You can buy the product here [1] for $49. As far as I can tell, the only difference is that one is opensource while the other doesn't seem to be.
[1] https://pogoplug.com/safeplug