The US Department of Justice didn't just give the go-ahead to Google's acquisition of Motorola today, it also gave the greenlight to a $4.5 billion bid on Nortel's patents from a consortium of companies including Apple, Microsoft and RIM (who have dubbed themselves Rockstar Bidco). Nortel's portfolio includes some 6,000 patents, and the DOJ says the approval comes after it received clear commitments from Apple and Microsoft to license so-called standard essential patents on "fair, reasonable and non-discriminatory terms, as well as their commitments not to seek inj