VIZ Media has updated its iPad app to version 4.0. According to the App Store:
iPhone/iPod Touch/iPad sync! Your VIZ Manga purchases are now accessible from our free app on all iOS devices. Shared bookmarks provide an even more seamless reading experience.
According to the site VIZ is having a one week sale (5/2 to 5/8) off selected Volume 1s of their manga.