A Not-So-Scientific Way of Counting iPad Sales on Day One

iPad shoppers at Apple store
iPad shoppers at Apple store

Gene Munster, a well-known consumer electronics and PC analyst at Piper Jaffray, is a notorious optimist about Apple's (AAPL) prospects, quarter in and quarter out. Before the iPad was released to stores, Munster said he expected the company to sell 200,000 to 300,000 units on its the first day.