If I were a product manager, the most orgasm-inducing fantasy ever would be a product with instant obsolescence — just buy it and throw it away. Were I a product manager with such an immediately disposable commodity, ah, be still my P.T. Barnum heart!

Unfortunately, instant obsolescence may not be such a fantasy. I peruse more and more press releases these days about some wondrous new product or technology obviating a recent product or technology I just wrote about. Maybe these aren’t exactly simultaneous buy-it-and-throw-it-away deals, but it’s uncomfortably close, and getting closer.

Read on for some of the more egregious examples. Afterward, I’m sure you’ll fill the comments with a lot more.