Middle June is the launch date and Nvidia can play with the date, moving it from the 18^th to 17^th or similar, but it looks that Nvidia will launch both GT200 in week 25 2008.

A few of our sources have confirmed that they are in preparation to launch these boards at that time. As Nvidia set quite high standards, the boards are supposed to be available at launch, and Nvidia has to ship in volume at the launch date.

The biggest issue is the price, as around $600 might be too steep, but at the same time GT200 / D10U-30 (the board that you now known as Geforce GTX 280) will definitely be faster than dual chip Geforce 9800 GX2 that sells for minimum of $500.  

ATI’s Radeon 4870 and 4850 will both end up slower, but they will also cost significantly less. From what we know, 4870 should cost $229 and it will be slower than any GT200, but it will be almost two times lower in price.