Rahul doesn't think so. There's always a lot of excitement when a rumour that Dell will start using AMD chips begins to fly around, but such rumours always seem to be squashed. However, Voodoo PC's Rahul Sood thinks that AMD doesn't need Dell.
...you need not be a Wall Street analyst to understand that AMD doesn’t need Dell to continue to grow their business. In fact, I would venture to say that if anyone chooses not to go the AMD route in the server and workstation market they will continue to lose ground. HP, Sun, Rackables, and others are secretly enjoying their success with Opteron.
Dissecting a recent Associated Press news story, he gives his take as a man inside the industry.

[Rahul's Blog]