wow, the internet is amazing... so many people and bound to find someone who has similar problems and great ideas...
I just got my droidx a few days ago, and just mounted the base plate yesterday, and let it 'cure for 24 hours', and then tried setting it all up today only to find out the silicone case/cover does not fit in 'well'.
for those that dont know, the car kit/holder has an insert... if you dont have a cover/case, then you use the insert.. if you do have a cover/case, then you dont use the insert... and yes it says 'genuine' motorol case/cover...
i too got the only one that Verizon had at the time i ordered, not even sure of the price, but would expect a warning/comment about the problem, and or have no problems in returning or getting verizon to work with me..
and in fact, i dont really expect a problem with verizon at all...
i also have a comment about the car charger... the cord is uber short... even with mounting the phone as physically close as possible to the ash tray/cigarette outlet, the cord is tight and pulls on teh phone mount, and I am sure it will pull the mount off the suction, and orpull the cord / plug out of the outlet... but, I will deal with that as it is still 'hypothetical' and not a problem YET.
I will have to check the price of the car / phone mount to figure out if i want to bust out the dremel or not...
I am sure there wont be many other covers that will fit, and i really want something to hold teh phone in place while i drive
so, unless someone has another suggestion/mount I can use, then i am probably going to get all rotary on this thing...