I don't know for sure whether your OG droid supports up to a 32GB card, but I can tell you that even the newer phones (D2 and D2G) are known to have all sorts of issues with 32GB cards. They rarely work correctly. Even though the phones are supposed to accept microSDHC cards up to 32GB, the forums are littered with people complaining that their 32GB cards don't work properly. What could you possibly want more than 16GB for? Plus, with as cost prohibitive as a 32GB card is (at least $100, usually more for a REAL, REPUTABLE one), you're better off buying 2 or 3 16GB cards, which can be had for much cheaper. Beware buying 32GB cards on ebay. If the price seems too good to be true, IT IS. The cheap cards from no name manufacturers are often 8 or 16GB cards that have been modified to "read" as 32GB, but obviously don't have the capacity.