Konigi, makers of some of the best UX templates out there (and our preferred OmniGraffle wireframe stencils at TBG) released their Keynote templates this AM. 

http://konigi.com/notebook/keynote-wireframe-toolkit

I have always been a bit iffy on using presentation software for wiring but at the end of the day whats a wireframing tool besides boxes, lines, text and the ability to template screens and pages?

Excited to try this out on Keynote iPad and see how it stacks up to OmniGraffle iPad.