Last night on the Android Developers blog, Tim Bray recapped a few improvements that have come to the Android Market since Froyo landed. Most of them (five out of the six) are old news by now, but the sixth is one we haven't heard about before:
Sixth, Market now has a “draft upload” feature; this removes a lot of the tension and strain from the app-update process. Get your screenshots and feature graphics and text and APK all squared away with as much editing as you need to, then update them all with one click.
Hardly a major improvement, but it illustrates the fact that they're still working on the market - particularly from the developers' side of things.