Connecting Android Phone With ADB

I recently bought a new phone (Motorola Electrify) and I'm trying to connect it with ADB but so far without luck. What I did:

Enable USB debugging on the phone
Connect phone to my iMac using the USB cable (the display indicates that it's connected)
Type "./adb devices" to list connected devices

Unfortunately nothing shows up. I even did a adb kill/start-server and I also added "0x22B8" to the adb_usb.ini (even though that shouldn't be necessary).

Can anyone point out what other steps I could take to debug why the device isn't showing up?

Thanks!

Solution

Thanks for your answers above, but I've resolved it myself. For anyone who has the same problem:

http://code.google.com/p/android/issues/detail?id=15583

has the answer.

It turns out that Motorola has several USB modes. I changed the mode to "USB Mass Storage" and it's working now. I did this by dragging the status bar down and clicking on "USB connection" to manage the USB connection.