I purchased an IPhone 4 on Verizon and downloaded the Logos app and it will not down load my content. The Library screen goes blank and with the exception of the one standard bible it won't work on any books, WIFI or 3G.
I also have an IPad and the Logos app works as advertised.
PS. Logos ad a copy feature to your app like Laridian has. Additionally your search feature stinks and will not work unless the device is online. Laridian works great except they do no have the depth of content nor does it tie to my PC like Logos so please spend some time and improve your mobile apps a bit. Thank you!