Pov's right about the date, if not his conspiracy theories.
(Although I wouldn't put it past Rossi - Evil ....... that he is - to be the party pulling the strings!)
I misread it too. Re-reading the post on Krop's site:
"The move is in response to the Formula One calendar, which sees the Chinese Grand Prix scheduled for April 15th, the date originally planned for Qatar, and so the decision was taken to start the MotoGP season a week earlier."
If the results page on MotoGP is right, 2011 Qatar was March 20.
Next year's schedule - 2012:
8 April, Qatar - Doha/Losail
29 April, Spain - Jerez de la Frontera
6 May, Portugal (STC) - Estoril
20 May, France - Le Mans
3 June, Catalunya - Catalunya
17 June, Great Britain - Silverstone
30 June, Netherlands - Assen
8 July, Germany (STC) - Sachsenring
15 July, Italy - Mugello
29 July, United States - Laguna Seca
19 August, Indianapolis - Indianapolis
26 August, Czech Rep. - Brno
16 September, San Marino & Riviera di Rimini - Misano
30 September, Aragon - Motorland
14 October, Japan - Motegi
21 October, Malaysia - Sepang
28 October, Australia - Phillip Island
11 November, Valencia - Ricardo Tormo – Valencia