Sorry, but those two promotional clips of people playing iPod Touch games says everything about why I can't take those platforms seriously. Where are my buttons? I have to do everything by pressing against a screen with no tactile feedback or tilting the iPod around? No thanks. The worst DS games are the ones that try to be traditional gaming experiences but forego all use of buttons to try and do everything on the touch screen, leaving the game a sloppy mess (both DS Zelda titles come to mind). Also, those screens are small and my thumbs are big, so now that 1/3-1/2 of the screen is blocked, I don't have much left to see at all. I suppose the iPad would help solve this seeing as it's bigger, but that also kills the portability aspect and now it would instead be compared to home consoles which is even more of a laugh than comparing iPod Touches to PSP or 3DS.
Plus, the price. $250 was too much for people to spend to buy a 3DS which has a full backlog of great DS titles and many great games of its own coming soon. It had to drop to $170 to get people's attention. But I'm supposed to pay $200 for an iPod touch that doesn't have room for much else or $300 for one with a reasonable storage capacity just to play stuff like Angry Birds that are also available on browsers? Top it off with Apple's nearly yearly device upgrades that you eventually need to keep playing the latest games ($170 for a 3DS that will last you a good number of years, or $200 for an iPod touch that will be obsolete in a year or two tops while Apple asks you to shell out $300 minimum for the latest and greatest?), and all I see is a fad just waiting to implode on itself while Nintendo, Microsoft, and Sony sit back and laugh at it. Mobile gaming pretty much killed facebook gaming (I'm sure people still do it, but when was the last time anyone heard about it) and sooner or later, something will come along and make everyone forget about mobile gaming.
If in 10 years or so, maybe 5, people are still lining up to buy the expensive as hell iPad 20 and the iPod Touch 50 or iPhone 4SJKQWHYCANTWEJUSTHAVEIPHONE5 to play the latest $5 apps, I'll happily admit I was wrong. I really can't see that happening though.