I use it occasionally on the iPad and love it, when I had an iPhone too, I was able to use it on there (and didn't have to pay for a separate version, as it was coded to work on both).
It's definitely worth it, though I haven't yet decided whether I want to pony up 30 bucks again for the android version. I'd just assume bridge the Internet connection to my iPad if I needed to remote my computers. There might be a case when I'll not have anything buy my phone on me, so I'll cross that bridge when I come to it (I can always just download it then)