Originally Posted by SeaBookGuy
With Windows, you need (or are supposed to have) both Adobe and Sony software installed, though you need not actually use the Sony one, for DRM'ed books. I thought I'd read that Adobe doesn't work with Macs, so you'd need to use the Sony software instead?
Were you reading public library books on your iPhone?
I hate to contradict you, but this isn't the case. I have the Sony Library installed, but not ADE, and Adobe DRM'd books work fine (including library books).