
OXCGN:
"The Dreamcast was a failure and caused Sega as a console competitor to step down, forever changing the industry.
Ever since that date, Sega faded away into a shadow of its former self. Quality titles were never released by them again, and Sonic was milked to kingdom come.
At this point in time they just periodically re-release their old games. But with the recent break in Sony‘s fortress (the PS3 root key being leaked, which allows unlicensed/pirated software to be run), drastic measures could forever change the industry by causing Sony‘s gaming division to be ruined by piracy and possibly even withdraw from current console competition.
Sega has a break in the storm, and the time could never be better for them to come back."

Two-day event includes exclusive reveals, trailers and playable games on show floor.

CEO Haruki Satomi said Sega will "take these lessons into account for future initiatives"

Rovio “found it difficult to advance its initially planned business development,” says Sega.
I wouldn't use the word "failure."
I'd be surprised if Sony left the console battlefield after working so hard, and Sega would need some big titles or some fancy new gizmo to attract enough interest in one.
But I've often wondered is Sega was biding its time and as the author says, why bother with patents in 2009 that are so detailed if you aren't doing anything? Unless it's a new controller that you can use on other consoles lol.
As long as we don't get any more Sonic, I'm happy.
Is there even room in the market for another console?
Well we have Apple approaching the gaming platform now from a mon-mobile area, so the talk of 4 platforms (or more) is mute really.
Apple have been working their way into the field (in-home-gaming) for some time, and it wouldn't surprise me if their next iTV doesn't have a gaming functionality included, using iTunes as its distribution mode.
SO Sega could well jump into the fray, but they would have to do a LOT better than the current field, as even Panasonic have entered the console (albeit with an online only mode), so that makes 5 platforms.
But with various means of distribution.
Ask yourself, how many brands of TV's are there out there.?
They all do reasonably well, and each services a particular market, there's nothing wrong with gaming doing the same, especially with the ever changing face of distribution that is approaching us in the coming years.
Lift your head out of the sand, look outside the box (no pun intended lol) and you could see many 'possibilities' for companies in gaming.