I used my new Edge 500 the first time today. No problems uploading to Garmin Connect, but I couldn't get my training center to upload from it. Communicator is working correctly; I even tried downloading it again to be sure.
It doesn't connect properly to units that download through the cable vs the ANT+ stick. They've had the "we are working on it" post up for a long time now.
Basically, you have to enter your data manually for now.