Jeez, don't take it so personally. It's just the internet.

Anyhow, the PSP is new for Sony, so you can't really say 'they never do anything new' :P

I think a big difference between Nintendo and the others is that Nintendo (and Sega) is a company that is entirely focused on video games. So while the Games division of Sony may have the same passionate outlook on videogames as Nintendo, it may be the bigwigs who look at the bottom line who may reject some of the more original/outlandish/risky ideas when it comes to hardware. So, Nintendo does risky things like: adding an analogue stick, adding interactive vibration, adding motion sensitive controls. Sony may have been thinking about it beforehand as well, but once the bigwigs see that Nintendo is successful at it they are gung-ho about adding it to their system.

It's the bigwigs that have Sony directed to a more market-driven approach. And the market believes that bigger is better--Sony just gives the market what it wants. Once it sees that the Market accepts Nintendo's way of doing things as well, we'll probably see more Nintendo-type decisions coming from them.

On topic though, the PSP isn't a complete failure. If you get it as a christmas gift or something, there are enough good games to make it enjoyable. Though if you're thinking about buying one, there are some things that money can be better spent on.