Mistakes that Sony did with PS3:
- 499/599 launch price tag.
- Released 1 year later.
- Split RAM - Lacking Cross Game Voice Chat (which is extremely helpul in online games) and slower XMB while gaming.
- Difficult to manege the CELL processor (problem number one. Because of this Bioshock and other games like Oblivion was later released and Left 4 Dead series never coming to the PS3)
- Inferior multiplatform games until 2008 and lacking the trophy system.
- Weaker GPU.
- Only after 2009 that developers were more familiar with the system architecture
*With PS4 looks like Sony has fixed all this problems.