Not really. Reasons:
1) PS3 is Sony's fail, while Sega shot itself in the foot years before the Dreamcast launched - if anything the DC was proof Sega had gotten its act together, albiet too late.
2) The Dreamcast signaled the end of Sega as a console maker - that doesn't appear to be the case for Sony.
3) In addition to their past failures, the biggest reason the DC failed was Sony's hype for the PS2. Sony convinced most gamers the PS2 would be teh awesome, with the greatest graphics ever, a brilliant launch lineup, and it could probably do your taxes and clean your home, too. All of this ended up being bullshit, especially in the first 18 months of the PS2's life. However the damage was done and many, many people stayed far away from the DC. Compare this to Sony, which entered the PS3 era with a sterling reputation, launched with (again) rediculous hype, but the PS3 failed (compared to expectations) because of their poor choices in console design, not because they were castrated by a console that wouldn't hit the market for another year.







