i don't really think phones are ideal for digesting magazine content
mags are 2 things - art and edit

art wise, the phones aren't big enough to really appreciate much in the way of photographs or illustrations that you spent good money to commission
edit wise, mag articles worth reading are usually long form, which sucks to read on a phone.

any magazine content that is nice and bite-size has probably already been cannibalized for the website, which should already have a mobile version