As part of their location data Q&A, Apple today revealed that an iOS update -- iOS 4.3.3? -- would be arriving "Sometime in the next few weeks". So far, Apple has only revealed that the update will:
- reduces the size of the crowd-sourced Wi-Fi hotspot and cell tower database cached on the iPhone,
- ceases backing up this cache, and
- deletes this cache entirely when Location Services is turned off.
In the next major iOS software release the cache will also be encrypted on the iPhone.
While there probably won't be any feature enhancements until iOS 5 -- or possibly a interim iOS 4.4 -- update, it's possible Apple will use the update to fix other bugs as well.
We'll keep an eye out for it mid-May. Any software glitches in particularly you'd like Apple to fix?