engage 2013 in HTML5

Hi.  I was wondering if anyone has used engage '13 and published to html5 & used on the ipad.  I read that it is supposed to be able to publish to html5, but was wondering how well it really does work.  We're considering upgrading from studio '09 and one thing that might really make a difference is if those engage interactions will really work in HTML5.  I used engage in a number of my e-lessons but with an eye towards the future have been thinking about ways to re-do those portions since the '09 engage interactions don't work at all on the ipad.  If they really do work, and work well, that may be enough to make a case for upgrading...

Any thoughts/experiences would be appreciated...

Adam