Using this slot for credit card is not recommended do the fact that the cover uses a magneto-closure system to hold it closed. Instead of only using 2 sets of magnets to keep the cover closed, the Orbino uses four sets. One in each corner. The effect of the strong magnets makes the cover almost jump to the closed position. I have no worries that the cover would come open on its own.
Orbino cases are extremely fine.
Of course they are not for the typical person that buys their clothes at Target and shoes at Foot Locker like ummmm, yours truly. They are meant for the executive that shops at Saks Fifth Avenue and has a summer house in the Hamptons. These are very expensive cases that don't protect your Palm any better than slipper type cases from other well known makers. But boy do they make a statement and look fantastic. If you have the cash and wanna join the jet set, you'll definitely want an Orbino.