As announced on Google I/O before, the ability to upload multiple APKs for a single product listing, is now available.
Up until now, each product listing on Android Market has included a single APK file. With this Multiple APKs support, mean, you can now upload multiple versions of an APK for a single product, that can be used to addressing a different Android platform versions, screen sizes, or GL texture-compression formats. APKs that share the same package name, but contain code and resources to target of different Android type.
Users can chooses APK that more compatible to their device. A smaller and without the useless thing that not really needed at first hand can give more advantage of simplified product maintenance. Multiple APK support gives you a variety of ways to control android app distribution such phones and tablets under the same product listing but different APKs.
To support this new capability, theres an update, including controls for uploading and managing APKs in a product listing, if you’re interested, just take a look here for more details.