Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_5 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8L1 Safari/6533.18.5)
TexShop 3, a really nice text editor for latex also supports versions. I'm secretly hoping AquaEmacs or (less likely) Carbon Emacs will pick up versions support. That would rock.