as for the dock...
the connector on the bottom of the nano is the same as the mini- so yes- it should work
the question will be if it actually fits
you can, however, always take the cover off the dock (?)
(i know you can do this w/ the bigger docks)
& then anything w/ the dock connector will fit-
best bet: try it
(that is, if you have a nano & a mini dock laying around)
if not- go get the nano dock
& u'll b fine
but as for it like breaking it or whatever- no the connectors are the same- thus it should work.