This Inquirer article reports on upcoming ATI video card technology which is apparently due in late summer:
Sources told the INQUIRER that its R300 product is likely to be introduced now in late summer, while the RV250 will also incarnate around about the same time.
The company believes that its technology will be far in advance of its main competitor Nvidia, giving it a windows of around five months or so to outsell Nvidia's current generation.
NVidia has hinted that their new architecture would be a "fundamentally new architecture" from their most recent video cards.