[theBobMcCormick]

To be clear, the limit for the main application APK is still 50K. This change allows developers to also host on the Google Market servers up to 2 supplemental files that are up to 2Gigs in size.

Basically, this provides a better supported, more reliable, more standardized way to accommodate the already common idiom where many Android games will, immediately on first run, begin downloading the game assets (graphics, sounds, music, etc).