Anime News Network did an in-depth comparison of reading manga on an iPad vs. a Nook Color today, after Viz Media sent them both devices so they could do a hands-on look at making the digital jump. After taking a hit from the closing of Borders, Viz decided to turn its popular Shonen Jump publication into a digital-only product. Launched in January, Weekly Shonen Jump Alpha is $25.99 for an annual subscription, with three of its flagship series -- One Piece, Bleach and Naruto -- now running almost concurrent with the Japanese release. Individual issues can be rented for 99 cents for a 4-week period.