Apple yesterday fixed a problem first brought to the forefront by Instapaper developer Marco Ament. The problem rendered some downloaded apps unusable as many crashed upon launch.
In a statement given to All Things D, Apple explained:
We had a temporary issue that began yesterday with a server that generated DRM code for some apps being downloaded. The issue has been rectified and we don’t expect it to occur again.
Also of note is a source within Apple which told Macworld that Apple “will be removing one-star app reviews developers earned unfairly because of the company’s server issue.”