The first release will be their Princess Ai Monogatari manga and will contain the first three chapters of the ongoing story for 500 Wii Points. Readers can then download additional packs of two chapters for 200 Wii Points each. It's to be noted that these additional packs will not contain the viewing program, so the main pack must be downloaded before using these additional chapter packs.
So far this new service hasn't been officially announced for release outside of Japan, but there's already been talk from Sun Denshi about possibly bringing these digital comics to regions outside of Japan. The Japanese release of the Princess Ai saga will even include English subtitles that are based directly off of the official localization of the manga.
We'll have more information on this new service as it becomes available, but until then you can check out the screen shots of the Princess Ai manga in action below.