Great article, but some things about the article and especially the comments, make my skin crawl.
Firstly - "The world runs on AAs", and even more disturbingly, those who actually recommend cameras and gadgets that use AA in preference to Li-Ion. This is totally insane. Li-Ion is a far superior technology than AA NiMH. If given the choice, why would you choose the AA version? The "proprietary battery" issue is far outweighed by the better performance, and the fact that the chargers are better and specifically designed for those batteries.
It's hard to believe some of the design choices. The Xbox wireless controller uses AA batteries? That's insane. Why doesn't it use a lightweight, compact, high-performance Li-Ion battery?
I recently needed to purchase a wireless mouse. I could have purchased an Apple Bluetooth mouse. But unfortunately, it used AA or AAA (can't remember which) batteries. Instead, I went for a Logitech Bluetooth mouse, which came with two lightweight Li-Ion battery packs, and a USB charger. Of course, it requires a USB Bluetooth dongle and won't work with the Mac's built-in Bluetooth - but I'd rather use up a USB port or add a USB hub than have to fill a goddamned mouse with AA/AAA batteries, whether they are rechargeable or not.
When it comes to cameras, there is no competition. Why would you buy a camera that took AA/AAA batteries? It makes no sense. If you are doing any kind of strategic planning with your tech purchases, you shouldn't have very many devices (apart from DVD remotes) that require those things. MP3 players with AA batteries? Ridiculous.
Now, in my professional work, there are still a few devices that require AA or 9v batteries. But many of those suffer performance issues with the 1.2v of a rechargeable battery. But the really important ones (wireless microphone transmitters receivers) tend to use 9v batteries anyway. That's a whole other kettle of fish. But how many people use professional microphone systems?
I don't know about you, but in my world, the AA/AAA battery is becoming largely irrelevant. If it isn't in your world, then maybe you need to assess what you are doing wrong that leads to a reliance on this cell type?
The other issue that disturbs me about the comments on this article are all the people who are religiously talking about the "memory effect" as if it were something real. The "memory effect" never actually existed. Not for Ni-Cad, not for NiMH, not for Li-Ion. It's a complete myth, and those who believe in it are similar to those who believe in fairies, ghosts, or the boogeyman.