Good question. If you look at Apple's revenue by product line [1], it does appear that iPad is following the same seasonality as iPhone sales. That means that sales spike in FQ1 and the other quarters are roughly similar. It looks like iPad sales in FQ2 will be about 5 million, slightly higher than FQ4-2010 [2].
Even though the iPad is on a refresh pattern two months earlier than iPhone, I don't think it's going to hamper performance for FQ2, especially since enterprise makes up an increasingly large part of sales.
Even though the iPad is on a refresh pattern two months earlier than iPhone, I don't think it's going to hamper performance for FQ2, especially since enterprise makes up an increasingly large part of sales.
[1] http://images.macworld.com/images/news/graphics/157242-corre...
[2] http://www.apple.com/pr/library/2010/10/18results.html