Good post Palminio,
Going forward a few factors are key for Sony.
Yen. As the dollar continues to erode the problem for Sony keeps getting worse. Many long term international contracts for companies are done on the dollar so it's value is critical to Sony. I'm not strictly speaking PS3's MSRP or price cuts but manufacturing/packaging/shipping/distribution/suppliers contracts and so forth that could be based off the dollar. Couple this with Sony generally operating on very low margins as is, you're in for some harsh times. Thus you're already seeing the first stage of Sony's reduction plans in action.
PS2 sales slowing. The PS2 is a profit center for the gaming division. As it fades away, it can't cover up for the PS3 as needed. The PS3 losses are more exposed and inturn, this exposure is highlighted to stock holders who can often overreact and want drastic changes.
Poor Software sales on the PS3. The PS2 was a software powerhouse. What they lost is hardware, they made up with selling a ton of software and the royalties associated. The PS3 software sales are not PSP piss poor but they're clearly not enough to offset the losses.
Poor accessory sales. While we can talk "value" all day, from a business standpoint, having everything enclosed in one box and selling for a premium isn't a great idea. Being able to sell harddrives, wireless adapters, memory cards and such as standalone accessories can be a key to lowering the core hardware prices while offsetting the losses with high accessory sales. Sony was forced to add all this 'value' to justify the high cost of entry. We know that wireless adapters and HDD's are not excatly cost leaders yet lead to high profit returns. However, having such items removed makes the sales pitch for a high priced PS3 become even more bleak.
Overall, the PS3 has been a perfect storm of market conditions and poor strategy (regardless of market conditions). Still, no need to dwell on what has passed. For Sony, going forward, the goal should be to minimize the losses and just ride out this generation. They're not in a financial position to fight it out and their poor initial choices have handicapped their options for market adaptation.