Only in analyst-world could this be "mediocre". I really dislike these guys. They are absurdly overpaid economic witch doctors. Somehow they have convinced Wall Street of their value... which actually says a lot about the people in control of our markets.
Hearing wildly different sales reports on the iPad, but apparently Apple, itself, says it sold "over" 300,000 on the first day (including pre-orders). Wall Street Journal says this is "below the estimates of some analysts".
Only on Wall Street could 300K+ sales in a day be considered mediocre, but that's how the game is played.