Chill Out Peple
For crying out loud how about some perspective here people? Has anyone ever used one of those drives with two USB ports, one for power? They're terrible! Having a small internal battery sounds like quite a useful feature for portable drives. The fact that no one has done this before just means that Seagate has done something quite wonderful. "Obvious" would probably lead one to the conclusion that all disk manufacturers don't understand their markets. A better analysis is that these manufacturers do not want to spend an extra penny for something useful to their customers!
Now maybe we'll see some high performance large drives that can be used simply on a bunch of systems with tiny internal disks. Presently most of them!