Companies simply have lower budgets for new technology, and that has affected Dell's loss more than increased competition from the market leaders, HP and Acer. The bad news also set Dell stocks back a bit, falling about 19 cents a share, though they are still doing better than they were in the first quarter of this year. While they may not be a bulk of the issue, Acer has been putting incredible pressure on both them and HP, so it's understandable that Dell is struggling.
Dell does have a lot on the horizon though, introducing several new products this year, such as the Inspiron Zino HD nettop and the ultra-thin Adamo XPS. Still, they will have to work harder than that to recover ground lost to Acer and HP.