Mine is still not working, but I did get a response back from tech support this morning.
So let's see how long it really takes now.
We recently released a new map version 8.60 on November 15, 2010. However, the total number required for the Map Share? Corrections were not gathered and thus, this misleading message was sent out. This issue is purely technical and we have already started the process to release more number of Map Share? corrections to cover it up. Rest assured that you are using the latest map if you have 8.60 or 860.xxxx version installed on the device Please keep updating your device regularly (this and next week), as this issue is estimated to be fixed pretty soon.
So let's see how long it really takes now.