Why making one if it won't be a big support they could continue doing normal handheld then.

The N-Gage exemple was to people who think making a vita phone will automaticly be a success

That is what they have been doing for years, they just recently started to target casuals as well to improve sales. 
I don't think just because they startet to cater to casuals, that there will be less to core gamers. It's just more for both i think.

3-10 casual gamers will become a core-gamer sooner or later. 

6/10

Not your best work.

I have no idea what were they thinking. They even forgot to add such a basic feature in this day an age for core gamers as the online paywall.

I see the Plystation Phone succeeding because it would offer something that no other manufacture or OS is offering. Sony's phones are already the best on the market, but they still lack the factor that will pull people away from upgrading there Apple or Samsung every two years.

With current 3rd party support i don't see how it will success a lot of people though playstation tv would be a cuccess because it's offer something other micro-console don't have but it failed in the end

Here's why a company might choose to target casuals:

casual $ > core $

I would rather say they spend their money on different games, and differently, if at all....

Sure the iOS games make tons of money, but are they really the same games that make "hardcore gaming"? are the principles the same? I mean, beyond the fact that you play them on a screen... the f2p games are closer to gambling than to what we normally call video gaming (despite the best efforts of some companies to merge them both)...

So yeah, people like to spend their time on the pay 2 win titles, but it this really what the hardcore want?

If so, well, I will just keep playing my old self contained games and forego modern gaming, no amount of farmville or free mmos will get my interest.

"PS4 had great sale because it launched with cross-gen games are not port of old games", i dont undestand how cross gen games can diffrentiate the product from old gen (even with small improved graphic ), if you compliment PS4 having cross gen games actualy it's the opposite, having cross gen game will hold PS3 buyer to get PS4.

"Advertising without good support will do nothing ", agree with u that's why PS4, PSP and Vita had their first party and third party support on launched day even the game is small.

" and third party stay support it even after launch " , That's because PS4 had  " PS " brand awarness and proven had a long support, unlike "Vita " which is new brand, unrecognized, unproven, and targeted differently from PSP market and confuse the market.

If you expecting SONY released their gaming platform with games like Final Fantasy, Monster Hunter, GTA, etc on their launched day, that would be imposible, even if they were willing paying the exclusive, it will only had small affect and then the sales will gradually decline. 

Casual are more dificult to convince ,Nintendo fail to convince them to buy a wii u.

Core gamers just give him a more beautiful game graphics and he woul buy it