I just noticed that Best Buy is currently offering the 3G iPad models for $30 off. It's just a modest discount, but it's interesting considering that it's rare for Apple products to be sold at a discount. (Discontinued or refurbished products are the notable exception). This is particularly true for the iPad; Apple controls the retail market for the iPad even more tightly than other products like the iPod. (Ex: iPad is not sold through Amazon.com). Perhaps it's more evidence that a refresh is imminent.