Just for fun, I've created a Google map for the 5.9.905 update. When you receive it OTA, just go to https://maps.google.com/maps/ms?msid...143,114.169922 and "stick a pin" with any information you want to divulge (Date and Time, generally). You don't need to put your exact address, just a Zip Code will do. To do this you search on your location and then click "Save to map" then you can edit that with your information.
As it builds you can see how random the update is.