Sony's treading on thin ice already with the announcement of their first major mistake with the PlayStation 4. With the emphasis Sony is placing on the redesigned PlayStation Network, we are all surprised to hear that games you purchase through PlayStation Network on your old PlayStation 3 will not carry over to your PlayStation 4. If you want to experience brilliant games such as Journey or Flower, or even full console games purchased online on your PlayStation 4, you'll need to buy them all over again.
Not only this, but the upcoming PlayStation 4 is not backwards compatible with your library of PlayStation 3 games. Apparently, the PlayStation 4's insides are too different from the PlayStation 3 to justify draining power through emulation, but Sony is looking to have PlayStation 3 games available in some form later in the console's life. We'll probably be seeing even Higher Definition rereleases and some PlayStation 3 games available to stream, but that doesn't make up for the fact that we still won't be able to access all our saved data from PlayStation 3.
In an industry climate as unstable as this one has proven to be in the past few months, it's three strikes and you're out—for good. Be careful, Sony. This is strike one.