Oh, please. Read the comments for those articles. Read how iPod is a useless mp3 player because it doesn't have wireless, and nobody would buy one (except for the iSheeps) when they could get a nomad. How the iPhone is a useless phone because it doesn't have physical keys, and nobody would buy one (except for the iSheeps) when they could get a Blackberry. How iPad are a useless device because you can't do all the stuff you can do on a laptop, and nobody would buy one (except for the iSheeps) when they could get an Asus EEE.
The point is, when it comes to prediction of successful products, Slashdot group think usually knows Jack Shit.
Some quotes for ya:
About iPods
Raise your hand if you have iTunes ...
Raise your hand if you have a FireWire port ...
Raise your hand if you have both ...
Raise your hand if you have $400 to spend on a cute Apple device ...
There is Apple's market. Pretty slim, eh? I don't see many sales in the future of iPod.
http://slashdot.org/comments.pl?sid=22940&cid=2467504
About iPhones
My guess is that early adopters will get it and use it, but for the general masses, this won't be something they get for another 6 years, unlike the iPod.
http://apple.slashdot.org/comments.pl?sid=215930&cid=17528796
About iPads
It's more than just an iPod touch that won't fit in your pocket...it's also an underpowered netbook with no keyboard. It's the worst of both worlds!
http://apple.slashdot.org/comments.pl?sid=1527002&cid=30921390
Note how all these comments got either +4 or +5 insightful?