Quad Core Xeon: Additional Information

Dailytech has released new information concerning the forthcoming Quad Core Xeon.
Among all the new Xeon models, the interesting one for Mac Pro will be the Xeon Cloverton having identical architecture than the current Xeon Woodcrest sitting in Mac Pro.
Those Cloverton Xeons should be clocked at 2.66, 2.33, 1.86 and 1.60 GHz and their respective introduction prices (per unit for 1,000-unit lots): $1172, $851, $690 and $455.
Based on those expectations, a high-end Mac Pro based on 8 Cores should cost around 4000€.
However, having an entry-level Mac Pro and performing a CPU upgrade latter on, might be a financially interesting opportunity... but Apple might be already preparing the launch of 8-Core Mac Pro as soon as the new Quad Core Xeons become available.