More rumors about the Ice Cream Sandwich OS appears just a day before its eventual announcement in Hong Kong tomorrow - the OS is said to be shipped with comprehensive photo editing features that will be built into a new version of the Gallery/Media Viewer APK (users might see an edit button while viewing photos). Android Police has also made mention that it doesn't run on older versions of Android.
Some of these features include crop, sharpen, flip, and a selection of 19 possible photo effects. Nothing has been confirmed yet, and this is still highly speculative in nature, but the good news is that these details will be confirmed tomorrow.
Source: Android Police