The Third Chamber shared the concerns of the Commission about the vagueness of Belgium's transposition of art. 31 of Directive 2002/22, the Universal Service Directive, which deals with "must carry" obligations for cable companies. Commission v. Belgium
Here's one in the category "fun with access to documents law". The Commission lost a merger control case in the MyTravel/Airtours merger, case T-342/99. Afterwards, the Commission put together a working group to sort out the implications of that ruling. MyTravel asked for access to the documents of that WG, was denied, and won in part before the General Court, case T-403/05. Now Sweden (who else) appeals, because they want MyTravel to have access to the rest as well. In light of subsequent case law (API, Technische Glaswerke Ilmenau), AG Kokott says they should win. Sweden v. Commission
In the General Court, Siemens saw a € 396m cartel fine upheld in its entirety: Siemens v. Commission (DE, FR). However, in the other cases stemming from that same cartel (in the market for gas insulated switchgear projects), a number of other applicants did see their fines reduced: Siemens AG Austria et al. v. Commission (par. 65-72) and Areva and Alstom v. Commission
P.S. The archive of these emails is here.