I'd like one where it docks in landscape. Last year we were out of town and this Cheeseburger in Paradise restaurant had these little menu cards in a small little dock like a business card holder on all the tables but we stuck our phones in it and it fit perfectly. So for now we each have one of those sitting next to our bed on the night stand.
I just upgraded to the M8 from a 3-4 year old HTC Inspire. For the Inspire I have a Seidio Desktop cradle (SEIDIO | Desktop Charging Cradle for HTC Inspire 4G/Desire HD). Seidio does not yet make a similar cradle for the M8. So I put my M8 in the Inspire cradle and it fits fine.The cradle base is weighted which helps counterbalance the extra height on the M8 compared to the Inspire.