[NTG-context] Style file for iPad?

If this has been asked before, my apologies. Is there a style file for formatting PDFs from ConTeXt for reading on an iPad? So far I've just used \setuppapersize[A4][A4] \setuplayout[backspace=20mm, width=160mm, topspace=20mm, top=0mm, header=0mm, footer=10mm, bottomspace=20mm,bottom=0mm, textheight=250mm] which works fine - for printing - but isn't optimized for the iPad. If anybody has any suggestions or examples, I'd be very grateful of them! Thanks, Alasdair -- Blog: http://amca01.wordpress.com Web: http://sites.google.com/site/amca01/ Facebook: http://www.facebook.com/alasdair.mcandrew