When the news first broke, the initial tweet said that DSK had been arrested at the hotel, not on board the Air France flight:

As can be expected in this day and age, the news broke on Twitter first. Jonathan Pinet, a master’s student at Sciences Po Paris (and supporter of Sarkozy’s party, the UMP) tweeted that he had received the information from a friend who worked at the hotel where DSK was staying (and where the apparent incident took place.). His tweet was retweeted by over 40 people – one of the first being Arnaud Dassier, a journalist who recently published anti-DSK articles when the IMF Chief was seen in a Porsche with his wife.
An article in French newspaper Le Monde clearly underlines that DSK was arrested on board Air France flight 23 and not at the Sofitel as Pinet mentioned in his tweet. While it is possible that the inaccuracy of the information that Pinet published on Twitter was an innocent error, many are wondering if it points to a conspiracy.
Comments on Twitter and Facebook regarding the #DSK affair have been multiplying and Pinet’s followers have more than doubled in the last 24 hours. Many think the situation looks suspicious, especially as DSK plans to plead innocent. His wife has very openly announced that she believes his innocence as well.

In fact, the idea that this is all a conspiracy theory has gained enough attention to show up in a Vanity Fair piece:

The head of a powerful international institution is about to announce his candidacy for the French presidency. All the polls show him well ahead of the unpopular incumbent. The gilded salons of the Elysée Palace seem within his grasp—until a stunning event derails his presidential hopes and his political career: incredibly, improbably, he is accused of attempting to rape a New York hotel maid and is arrested aboard an airplane shortly before takeoff.
It could be the plot of an international thriller if it were not true. At least the above details are true—Dominique Strauss-Kahn, 62, the dashing silver-haired director of the International Monetary Fund, sits in a New York prison cell after a Manhattan Criminal Court judge denied his bail request on Monday. He faces up to 74 years if convicted on charges of attempted rape, sexual abuse, and illegal imprisonment. Those are the facts. What is less certain—at least until it is proven in court—is whether the astounding accusations against him are wholly or even partially true.