Not really. Nokia Maps is more than Nokia Maps on iOS. Downloadable/Offline maps is killer feature in Nokia Symbian/Meego phones (at least for travelling person from Europe). I guess the same solution is used in Lumia phones as well.
Since I don't want to buy Lumia phone when there will be no Symbians anymore I hope Android will have proper offline maps or EU will force reasonable price for data connection across Europe (what it actually does gradually).