The Android Market, at the behest of consumer feedback, is introducing a new content rating system that will help inform its users. The new rating system will apply to all apps on the Market, with ratings going from All, Pre-teen, Teen and Mature.
Developers submitting new or updated apps will be required to include a rating on all content. Developers that do not update their apps will receive a “mature” rating until they are able to update.
More information can be found at the Android developer blog.

