It's Dead Jim!
As to the rumors of Domino's impending death, they are highly exaggerated. There was a lot of trepidation about what would happen to the Domino platform once IBM took over the product.
Yet I've seen nothing but improvement after improvement since the acquisition. The most recent version of the Notes client is based on the Eclipse client platform.
The Notes Developer client is an Eclipse IDE implementation. IBM continues to add features and services to the product and is always working to improve performance. The company shows no sign of letting up.