The drivers in that list actually come right from Microsoft (like sqlcli.msi, or SQLSERVER2008_ASOLEDB10.msi). I'd guess that when Microsoft posts it's first new feature packs after the release of SQL Server 2012, we'll have them on our web page, too.
BTW, I've used the "current" drivers against CTP/Beta versions of SQL 2012 with no problems. Are you bumping into an issue, or just curious?
Just curious. Thanks for the info.