Best Buy updated their system with 3 product listings:http://www.engadget.com/2010/02/15/d...entory-system/
One of the commenters said they worked at Best Buy and the product would take about 2 weeks to come in. I'd have expected sooner i.e next week but if Apple are going to use NVidia Optimus, they won't ship until early March.
I was hoping for a jump to either the Radeon 5650 or GTS 250M but the Geforce 300 series with Optimus tech might be better for Apple's desire for long battery life.http://www.nvidia.com/object/geforce_m_series.html
Anything from the 325M and up is better than the 9600M GT. The 350M is probably too much to expect.
I imagine the 3 models will be the current 3 highest end MBPs, which have the 9600M GT. Everything below can get a minor CPU upgrade and like the iMac line stick with the 9400M on the entry level.
CPUs will probably be Core 2 Duo first then Core i5 then Core i7 on the 17" or corei5/i7 options on the last two.