I've tried 3 times now to scan my Droid at the grocery store, and I never got it to work.
No, I've only tried it with one card but I have tried scanning that card multiple times. Every time I've tried to use it at the store, I proudly whip out my Droid and hold it for the awestruck clerk to scan. They try several times and then I stuff it in my pocket and shamefully pull out my wallet with the real card in it.
I wonder what the problem is. My little keyring card is tiny and scuffed and scratched and it scans the first time.
The Droid barcode is big and bright. Maybe too big? Maybe the scanners are calibrated for a certain size? Oh, well.
I tried at the store last night, clerk used the gun on it - didn't work. However, after reading to adjust the brightness, I hadn't had a chance to do that first. I did it after I got back in the car, the default was set to lowest brightness. I'll try again next time I'm at the store.
Tried it at two groceries stores and the gym. The grocery stores were flat bed scanners, but that's what you see most of the time in self-checkout lines. I had the brightness turned all the way down and had cleaned the screen before I tried to use it. Since no one was behind me I actually tried for quite some time, but no luck.
Really disappointing since I do have a bunch of cards in my walled.