The Articia P has received a speed bump (400Mhz DDR memory instead of 333Mhz and probably a bump of the CPU bus too). This is the Northbridge that is due to go into the future AmigaOne-XC from Eyetech.
There is also some information on what can be expected with the new Northbridge the Aritcia I and "budget" variant, the Is.
On April 23, 2003 Amiga entered into an Agreement with Itec LLC, later acquired by KMOS, Inc. for the transfer and sale of all of Amiga's right, title, source code, and all versions, from the Classic Amiga Operating System through AmigaOS 4.0 and all subsequent versions to KMOS, Inc.
Yours truely (Ryu) has put up a report from the Big Bash OS4 roadshow, which took place in Peterborough UK, on the 13th of March 2004. You can find it <a href="http://www.ryus-reports.webhop.net">here</a>