OmniGraffle[1] is great and has been around since the iPad’s launch in April of 2010. It’s a mature app, it has had many updates[2]. [1] http://www.omnigroup.c

OmniGraffle[1] is great and has been around since the iPad’s launch in April of 2010. It’s a mature app, it has had many updates[2]. [1] http://www.omnigroup.com/products/omnigraffle-ipad/ http://www.omnigroup.com/products/omnigraffle-ipad/ [2] http://www.omnigroup.com/products/omnigraffle-ipad/download/releasenotes/ http://www.omnigroup.com/products/omnigraffle-ipad/download/...