It looks like the discontented murmuring over the inherent jankyness of Sony's 20GB PS3 may be able to subside. Gamesindustry.biz
reports that everything in the core package will be upgradable to the premium version except for the HDMI output. A wi-fi adaptor will be available for purchase as well as an adaptor that supports memory sticks and flash drives. Good? Bad? I haven't decided. Hopefully all of these upgrades for the core version will at least be vaguely cost-effective.