And why wouldn't they? They're already selling the iPhone, thanks to their cell phone department. And they've got a pretty good hold on the iPod line-up as well, thanks to their MP3 player section. And if you've been into a Walmart, you know that they're beginning to take their electronics department pretty seriously (even if it isn't up to Best Buy's standards). But they want to make sure that they start getting taken seriously, and in their efforts to keep expanding that particular section, they want the iPad.