1. Jump Toon, a new vertical scrolling manga app, has revealed a partial lineup of titles that will be available on the platform. The lineup includes the popular sports manga series "Haikyu!!" by Haruichi Furudate, which will be serialized on the app.

2. The article notes that Jump Toon is a new digital manga platform that will feature vertical scrolling, allowing readers to easily navigate through the content on their mobile devices. This format is becoming increasingly popular in the manga industry, as it caters to the way many readers consume content on their smartphones and tablets.

3. The article also mentions that the full lineup of titles for Jump Toon has not been revealed yet, but the inclusion of "Haikyu!!" suggests that the app will feature a diverse range of popular and acclaimed manga series. This is likely to attract a wide audience of manga fans who are eager to access their favorite titles in a convenient and user-friendly format.