From crash.net :

Felipe Massa and Fernando Alonso insist that their first lap clash in the Spanish Grand Prix won't affect their racing relationship, even though the Spaniard continues to claim that he was hard done by. Alonso drafted poleman Massa down the long drag to turn one at the Circuit de Catalunya, before trying to brave it out around the outside of the corner. Appearing to pinch the Ferrari at the apex, the two made contact, with the result that the world champion speared off across the gravel, rejoining in fourth place, narrowly avoiding the second Ferrari of Kimi Raikkonen as he did so. Opinions on the incident varied - as they always do - with Massa feeling that he had done nothing wrong after being left with nowhere to go and Alonso believing that he had done enough to claim the corner. "It was very tight," the Spaniard admitted, "I think the start was very similar between the two cars but then, obviously, I put myself behind Felipe and, thanks to the slipstream, I was a little bit quicker. I went on the outside, braked later and I think I was much in front of him in the first corner - but, unfortunately, he didn't think so and we touched each other. "I think we were lucky to both finish the race because, in 99 per cent of these type of incidents, both cars will finish at the first corner. Sometimes, I think this type of thing is very dangerous." Picked up on the last word of his explanation, Alonso backtracked slightly, but maintained his claim that Massa was the aggressor in the incident.

Actually I also thought Alonso had done enough to claim the corner. Obviously others didn't but I guess it is OK - it could also be considered a race incident.