It looks like the bidding for the national C Block is complete and the regional bidders have won. Round 34 is complete and no new bids were entered for any of the crucial regions encompassing the 50 states since round 30 meaning that any bidders three waivers were used up. Whether one bidder won them all or they were split is unknown, but the Open Access rules for which Google and others heavily lobbied will go into effect as the block did crest its 4.6 billion dollar minimum.
There is a small chance given the complex auction rules that another bidder in the A or B blocks has bid enough since round 30 to qualify to enter another bid for one of the C Block regions but that possibility seems far fetched. Saul Hansell of the NY Times Bits Blog, Erick Schonfeld of TechCrunch and Tim Farrar of TMF Associates have all offered expert analysis leading up to this point.