Apple has really been cranking out iOS updates of late, with released in mid-April to address FaceTime video chat and 3G wireless connectivity issues.
As , iOS 4.3.3 cuts the size of the "iOS crowd-sourced location database cache" stashed on your device, no longer backs up the cache to iTunes and nixes the whole shebang when you turn off Location Services. Another update called 4.2.8 provides similar patching for the Verizon iPhone 4.
Here's what Apple watchers had to say about the software updates:
Macworld's Dan Moren on the iOS 4.3.3 release: