For those who know their way around the insides of an Android smartphone, pulling the apps off the device in their .apk form is a pretty trivial exercise. (We showed you how to do it many moons ago.) Now, thanks to a clever developer and a Chrome extension, you can download Android apps to your computer straight from the Android Market — no smartphone acting as a middle man.
The trick is to install redphx's APK Downloader Chrome extension, turn off SSL error notifications, and then set a cookie for your Android Market e-mail and device ID. (Which means you need to be giving that sort of info up to the dev's cookie.) From there, you go to an App in the Android Market, hit the icon that now appears in the Omnibar, and download away. We've tested it out, and things work as advertised.
All that said, we've got no idea how Google's going to feel about this, but we imagine the Android Market doesn't have this sort of download capability in the first place.
We've got some demo video after the break if you want to see what you're getting into.
Source: code kiếm cơm blog; Thanks, redphx!