Cross Stitch Markup for iOS has been released!  This is a companion app to WinStitch and MacStitch, which lets you mark up your designs for sewing while on the move, without sheets of paper or fiddly PDF files.  It reads CHART and MOTIF files, and you can markup on screen at the touch of a finger.  Whats more it is completely FREE! (No ads, no nags, no paid upgrades)    get your copy now!
https://itunes.apple.com/us/app/cross-stitch-markup/id1434170027?ls=1&mt=8