Verizon mentioned that it'd pick up "several Android-based devices" as part of its sweeping tie-up with Google last week, and we know two of them -- a tweaked version of the HTC Hero and the unannounced Motorola Sholes / Tao / Droid -- but what else is in the pipe? Turns out that Verizon's historically boring Open Development program -- designed to let anyone with a good attitude and some elbow grease gain