I used to have an HTC Droid Eris (so glad I don't have that anymore) and had the Key Ring App. I couldn't use it because I couldn't get bar scanners, such as my local grocery store, to work. Now I have the Motorola DX2 and I was curious if it had any better results. If you did have success with Key Ring using te DX2, did you have to do anything such as dimming the screen ( and how did you do this) to have success everytime. Thx.