According to this link from IGN, Sonic 4 will be out as soon as next week. Here’s the breakdown of the prices and release dates for each console:
- iPhone on October 7th ( Across all territories. No price mentioned as of yet.)
- Wii Shop Channel on October 11th (15th in EMEA countries) for 1500 points.
- PlayStation Network on October 12th (13th in EMEA countries) for $14.99 / £9.99 / €12.99 / AU$19.95
- XBOX Live Arcade on October 13th (across all territories) for 1200 points.