Articulate on iPads?

To state the obvious -- more capable tools are going to be more complex to use than less capable tools. The Articulate design and development crew has done a really dynamite job balancing complexity and ease of use. 

As for other tools on the market, we've been scanning for awhile. I've been really disappointed in the output of the tools I've tested. HTML5 output of all of the tools I've tried really doesn't live up to the hype conveyed by the marketing materials distributed by the toolmaker. Many of these HTML5 outputs seriously handicap the generating tool to the point that it's not really an equivalent output to the native published output (Flash based).  The outputs also looked, and in some cases behaved, differently on each browser I tested on. Not to mention the utter failure of these tools to provide a workable output for IE6 or IE7 (still holding a non-trivial slice of the market).

I love HTML5 in theory. In practice, it's been pretty mediocre where e-learning is concerned. But it's just the beginning. I expect the tools to get better and better as time goes by. I have no doubt Storyline will ratchet the bar upwards.