This dip/correction/whatever in domains is directly related to the world economy, although some sectors (LLL and LLLL.com) were slow to react. When the overall economy rebounds then the domain market will also rise.
Most so-called experts think the credit-housing problems in the USA have a long time to run yet, maybe a year. But the takeover yesterday of Fanny and Freddie stabilizes fully half of the mortgage market at one go. With an election looming the government is likely to make mortgage lending a lot easier. So, slowly, confidence should return.
The .Mobi junk dump will likely be large, regardless of the economy. That is because there was a lot of junk bought, not a weakness in either the .Mobi market or the domain market.