We can certainly understand why Verizon wants to brand all of its Android devices under the "Droid" label, but at this point we can't say we understand why it's launching the HTC Droid Eris alongside the Motorola Droid at all -- BGR says it's going to run Android 1.5 on a 528MHz Qualcomm CPU, which means it'll be instantly obsoleted by Android 2.0 on the Moto's OMAP3 at laun