I hope they at least keep the form factor of the Droid/Droid2 for their next iteration.
I have the car dock and the home dock and I love using them. My plan was to upgrade to the D2 when my current Droid fails or the NE2 contract runs out.
I am tired of seeing these companies create a product and then wonder why there is no brand loyalty like you see with Apple products. That's because with Apple, they stick with a form factor for longer periods of time and this allows 3rd party companies to design lots of cool products for them. Customers see all of the great peripherals that they can buy for their phones and they stick with them.
I love my Droid and the myriad of configurations I can get from it by just popping it into a car dock or my home dock....or using it in standard configuration.