Recently, Apple’s App Store — the iTunes area designed to showcase and sell independent, third-party programs for the iPhone and the iPod touch — hit an inventory of 1,001 applications. The store launched with a little more than half that number, and in the first weekend it served up 10 million downloads. Some reporters have likened the App Store to a candy shop, but I think it’s more addictive than that. Every time I swing through to check it out, I find myself struggling to exercise self-restraint, lest I burn through a hundred bucks without even thinking about it.