While there are no true concessions required, it would be premature to say that approval came with no strings attach. The Commission made a strict warning that it would be watching all players in the mobile space, as it has grown concerned over “the increasingly strategic use of patents.”
Nor did the EU Commission stop at a general warning; the official press release contains an entire section of FRAND law concerns, citing the explicit laws and expectations of FRAND patent holders. Not only does Motorola Mobility own many FRAND patents, they are currently using some in their ongoing legal dispute with Apple. Samsung, who has been even more aggressive with FRAND patents, recently found themselves on the wrong end of an investigation into anti-competitive practices in Europe.
The U.S. Department of Justice is expected to also approve the merger this week, leaving China, Israel, and Taiwan to approve the deal before it can officially close.
source: Europa; Google via The Verge