In their ongoing effort to eradicate every single job in publishing, Amazon last night announced plans to sell e-books books for the iPhone. With the announcement, the company released its new iPhone application, which gives customers access to all 240,000 titles in its online store, all for the low price of not that much less than you’d pay for a real book. The Times thinks this signals that Amazon is more interested in selling e-books across platforms than in making theirs the top e-reader, though it seems more to us like a plan to emphasize the Kindle’s superior battery life (practically infinite) over that of most other portable devices (our iPhone dies after a few hours, even if it’s idle in our pocket). The application is well designed and everything, but we’d imagine fewer people will be wowed enough by the e-book experience to buy a Kindle than will be annoyed enough, when their phone shuts off, to just buy a paperback. Then again, we are old.