DS has been out since late 2004.

I don't think the PSP should be pulled off the market. I hope developers will make more quality games for it, instead of shovelling off bad ports of PS2 games. Sony won't pull PSP off the shelf anyway, because it's really not doing *that* bad--at least sales-wise. In fact it's doing pretty well, it sold over 400,000 units in the US last month. It's still selling on its 'cool factor', last month in particular was probably a big month for christmas shopping.

The system is still selling, Sony won't discontinue it. There are actually quite a few good games to get for the PSP if you have a PSP, but there isn't much there to say "I must have a PSP to play this game".