After simmering quietly for the last few months, Sega is finally ready to take Sonic the Hedgehog 4: Episode I off of the stove and serve it up for the Nintendo Wii, Sony PlayStation 3, Microsoft Xbox 360, and Apple iPhone next month starting on October 7 for the iPhone and the following week for the Wii, PS3, and X360.  $15 will snag the console versions, while the iPhone version has yet to sport an announced price.  It's great to see that the first installment is just about ready to go, but is anyone else feeling twitchy about that price tag?  I've been burned by $15 games that promise more than they can actually deliver much too often lately, so while I know I'll have to go ahead and take the chance on Sonic 4, I also know that if the game turns out to be a dud (unlikely given how much I enjoyed the demo back at E3), I'll have to re-evaluate my tendency to spring for these $15 downloadable games.  I don't mind taking chances, but if each chance ends poorly, then it doesn't seem too smart to keep taking them.