Unfortunately since the magazines have been updated with Retina support, this also means that the file sizes of the magazines have also increased, although exactly how much depends on the magazine and that particular issue, although given that some already come in at a few hundred MB, you can expect to add on an additional 50-100MB (once again, it’s subjective) for the Retina version. For those with 32GB or 64GB iPad models, you guys still have some wiggle room, but it looks like those on the 16GB model will have to start better managing their tablet’s internal memory.