Well goodness crikey, Skyrim seems to have snuck out a micro-patch. Running the game tonight an odd thing was happening - important texts from bodies were automagically opening when I looted, rather than waiting for me to pick them up and dig them out of the inventory. A change! I cried at the screen, and checked the version number. It's now 22.214.171.124, and it seems there's a bigger reason for the update: the game now supports 4GB of RAM.
The official update notes on Bethesda's site read:
Update 1.3.10 Notes (PC)
Support for 4-Gigabyte Tuning (Large Address Aware)
Fixed issue with accented characters not displaying properly at the end of a line
Huh to the second part, but that first bit is the thing everyone was begging for. A while back, a user patch meant the game could support all four of your RAMmy gigabytes, and then Bethsoft updated the game and it broke. And the whole world cried. Now, at last, they've made the Large Address Aware option an official, and on-by-default part of the game. So no longer is the game needlessly ignoring your super-fast PC memory. Although I'm now waiting for the 8GB update. (I don't understand how RAM works, or what large addresses are.)