That's Arcade Card Pro v. Duo for you cats.
Ok, so, I need to pick up an Arcade Card.  I have my fabulous Pimp my Duo-R.  My question is, is there any detriment to using an Arcade Card PRO (yes, I said PRO) in a Duo?  I'd like to pick up a Pro so that any future hardware combo I might get in the future can utilize the card.
Unless there's some huge lag or something from using a PRO on a Duo.  The price difference between the two isn't a factor as it's minimal.