It depends how it works. I already use Zinio on my iPad, and sometimes on my iPhone too.
Of course, I don't use iBooks, mostly because of the lack of a night mode, and also the lack of content. I use Kindle and Stanza pretty much every day though, so I'll probably continue to use Zinio, and ignore Newsstand.
Of course, I don't use iBooks, mostly because of the lack of a night mode, and also the lack of content. I use Kindle and Stanza pretty much every day though, so I'll probably continue to use Zinio, and ignore Newsstand.