Between ipad and kindle, which is the greatest option for self publishing a non fiction guide online?

Question by Fest. M: Between ipad and kindle, which is the best choice for self publishing a non fiction guide on the internet? I am considering self publishing my non fiction guide on the web (in order to save price) but I need to have to choose amongst ipad or kindle. I do not know which 1 of them is the better option in terms of marketability, distribution, royalties, cost and so forth. Then yet again, is it achievable to publish on both of them concurrently? Finest solution:
Response by old lady
If you go to Smashwords, you can publish in 6 distinct formats, so your guide can be read on each ipad and kindle. Also Sony, Diesel - go to their web site and read about it.
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