From Yahoo! News:
A 35-mile rift in the desert of Ethiopia will likely become a new ocean eventually, researchers now confirm.
The crack, 20 feet wide in spots, opened in 2005 and some geologists believed then that it would spawn a new ocean. But that view was controversial, and the rift had not been well studied.
A new study involving an international team of scientists and reported in the journal Geophysical Research Letters finds the processes creating the rift are nearly identical to what goes on at the bottom of oceans, further indication a sea is in the region's future.
Here's a Science Daily news release on the new rift. Here's a post on the subject at Scientific Blogging.