Today, Sprint approved replacement of my 6700 with a refurbished 6800.
I brought the phone to the store because "somehow" the 'M' button fell off of the keyboard. Since I have the technical assurance coverage (or w/e it is called) they told me they have a refurbed 6800 being shipped to the store, call in 3 business days and bring in my damaged 6700 for swapping.