Developer Kevin Smith has released an iOS text editor for Dropbox users. Droptext is a universal app for the iPhone, iPod touch and iPad that allows users to open, edit and save text files directly within their Dropbox account. In addition to standard text files, the application allows users open any file with a text-based mime type, such as HTML files, PHP scripts, and C programming code. Viewing of other non-text-based file types is not supported.…