infovole GmbH releases Textkraft Professional 4.1 for iPad, a major update to their popular text editor. Textkraft is a professional writing app, specifically developed for authors, editors, translators and other prolific writers. Delivering the first comprehensive mobile production studio, version 4.1 comes with many new and updated features, that are of great interest for self-publishers. Writers can be even more productive on their iPad. Textkraft Professional is $14.99 and can be downloaded from iTunes.