This is a belated announcement, but I think it's still important. Adobe announced a couple weeks back that Air for Android was in beta, and developers could request to join the beta program.
So what's the ebook angle? Adobe is making it easier for an iPhone app developer (who works with Adobe Air) to also make an Android version of the app. For example, GQ is based on Adobe Air (at least, this is the latest info I have). Now Conde Nast can put out an Android version, and expand their market.