Regarding form factor ... why would Motorola put out two phones with similar and supposedly "unique" form factors? I can understand multiple "slab" or "candy bar" form factor phones, as they are really the "norm" and every manufacturer has multiple phones with this form factor. But, the Droid X was rather revolutionary (or at least unique) in it's styling, in large part because of the humpty hump. Similarly, the DInc had unique backside, which seems to be carried on in it's successor in the DInc 2. And again with the original Droid and its bevel that was passed on to its successor, the Droid 2 (and seemingly will be passed on to the Droid 3).
But, rather than keep the unique styling to a phone and it's successors, it looks like the Bionic may inherit the Targa form factor, which is incredibly similar to the DX. So, at release, there will be the DX2 (the successor of the DX) and the Targa -- two very similar styled phones, thereby making the styling no longer unique to a particular line of phones, i.e., the DX/DX2. I would have suspected that the unique and revolutionary styling would be limited to a particular line, thereby maintaining its uniqueness. Obviously, time will tell if the Bionic truly does inherit the Targa form factor, but why have two "unique" style form factors from the same manufacturer?