Oh look, The Fuerher wanted them for Normandy:
On 23 May 1944, Goering, Milch, Galland, other senior Luftwaffe officials, as well as Armaments Minister Albert Speer and his people, were called to Hitler's residence at Berchtesgaden to discuss the current fighter production program.
The meeting was routine up to the point where production of the Me-262 as a fighter was discussed. Hitler was puzzled: "I thought the 262 was coming as a high-speed bomber. How many of the 262s already manufactured can carry bombs?"
Milch replied: "None, mein Fuerher. The Me-262 is being manufactured exclusively as a fighter aircraft." After a chilly silence, Milch then pointed out that the aircraft could not be adapted to the "Jabo" role without major design changes, and even then it would not be able to carry more than 500 kilograms (1,100 pounds) of bombs.
Hitler was shocked. Back in November, he had asked if the Me-262 could be adapted to the "Jabo" role, and received a glowingly positive answer. He had ordered that it should therefore be built as a fighter-bomber, and nobody had protested the decision. He had been including the "Jabo" Me-262 in his plans for the defense of the Reich against an amphibious landing by the Western Allies, which was expected any time soon and in fact would take place within weeks, on 6 June 1944.
Now Hitler was being told that not only were there no "Jabo" Me-262s, but that the assurances he had been given about its feasibility were false, and to make matters worse nobody had told him of any of this. This would have angered more moderate men than Hitler, and he was furious: "Who pays the slightest attention to the orders I give?! I gave an unqualified order, and left nobody in any doubt that the aircraft was to be equipped as a fighter-bomber!"
Goering made excuses and passed the blame onto Milch, who was presently stripped of most of his powers. Hitler ordered that work now be focused on delivering the "Jabo" version of the Me-262, though he did consent to continued testing of the fighter version as long as it didn't slow down deliveries of the "Jabo" variant.
......By late June 1944, a fighter-bomber unit, "Erprobungskommando Schenk", had been formed under Major Wolfgang Schenk. A month later, the unit was relocated to France with nine aircraft, in order to oppose the "real" invasion that was expected in the Pas de Calais, an expectation fostered by elaborate and comprehensive Allied deception programs.
The "Jabo" Me-262s in France accomplished little, and with the Allied breakout from Normandy were gradually pulled back, to end up in Belgium at the end of August. With the invasion now history, Hitler rescinded the order to focus solely on the "Jabo" Me-262 version, and the focus of production returned to the fighter variant. The Fuerher still insisted that any fighter variants that were built to be easily converted to the "Jabo" configuration on short notice.
http://www.vectorsite.net/avme262.html
