I love Memo’s ofxSimpleGuiToo and use it in just about everything Openframeworks. After messing around with Marek’s ofxWebSimpleGuiToo I thought I would try make it a bit more iPhone friendly. I first went the route of HTML5 sliders but strangely mobile Safari doesn’t render the input range sliders the same way as the desktop Safari does.
I then went the Native App route and ended up with this
more detail and source available on github