So good for PS3 and Vit sales but bad for PS4 sales

how's that?

PS3 and Vita had The revenue/profit posted in yen... so a weak yen means that it generates a lot of yens... now the PS4 revenue is posted in dollars so a weak dollar means low revenue/profit.

Everything lies in the conversion... example:

PS3 cost to manufacture = 100 yen but Sony sell it outside per 150 dollar, when you convert to yen again and the yen is weak you have 160 yen but when the yen is strong then you have 140 yen.

PS4 cost to manufacture = 100 dollar but Sony sell it outside per 150 dolar, you will never profit or lose more because the the conversion.

PS3/Vita profits more because the weak yen... PS4 not... I can be wrong too. 

I see, well the USD isn't weak atm, only the Yen has fallen a lot in price vs USD, EUR and a lot more major currencies.

So if the ps4 is traded in USD and not YEN there is no problem for sony. But if the USD is converted back to YEN, they will loose some money on it.

PS4's revenue isn't in dollars.  It's just that Sony made contracts to pay for the PS4's components in dollars, because at the time it would have been cheaper.  Now that the exchange rate has improved (technically the yen is getting weaker, not the dollar getting stronger) they are paying more than before for the parts, though I doubt it's too bad.  They are still benefiting from the exchange rate in terms of retail sales from the US and EU, however.

Waiting for the results

Added...

Game Division History

I agree with this. Awaiting the day a Nintendo fan accumulates Nintendos profits during their entire existence, come up with some bullshit number and claim all''s well with Nintendo.

Alright just a question.
The R&D of the ps4 was already counted in for a part in a Q in 2013 wasn't it?

Yes. Sony even talked that in one of the presentation slides in Q1 or Q2.