New meaning to 'sunset'

This is the first time I've come across the word 'sunset' used in this context:

"As some of you might know, AOL has recently decided to sunset its AOL Journals service."

I guess this usage follows on from the metaphor 'the sun has set on...' and is simply a softer, sugar-coated way of saying 'shut down', 'closed', or 'scrapped'. I wonder, will it form part of the credit crunch, corporate lingo, e.g. 'International Widgets will be sunsetting a third of it's product lines due to a change in the economic climate'.