Android market getting updates

Google has announced today that it will be updating the Market place today. For hours developers will be unable to make any updates until this process is complete.
Google has not said why now, but it is likely this is all in preparation for Gingerbread. From the information that has been floating around the mobile news community, it is likely that Gingerbread (aka Android 2.3) will be released within a few weeks time.
More on this as well as a quoted message of Google's message to developers can be viewed here: Droid Life: Android market update