I feel sorry for Nisus Writer people, but Mellel (38,99€ at the Mac App Store) has just made a huge step forward: in the middle of June its sibling application for iPad came to light (19,99€ a l’App Store). According to its presentation on the web, there is “complete fidelity” between the documents on the two platforms.
Mellel is a text processor intended to handle long documents, even if they are written in non-Latin alphabets. One Mellel’s functionality that seems to be ahead of what Nisus Writer offers is the management of word partitions. We’ll have to buy both applications to assess their virtues by ourselves.