http://www.tomshardware.com/news/amd-trinity-cpu-motherboard-mainboard,15922.html 

Quizz, whats the scoop on these ?

That seems like a rather confused explanation.  This one is more plausible:

http://semiaccurate.com/2012/06/01/amd-delays-desktop-trinity-one-quarter/

If you want my speculation, then here you go:

Trinity is a killer chip in laptops, but only a budget option in desktops.  If you're trying to fit it into a small form factor (e.g., Intel's ultrabooks) without a discrete video card, then the A10-4600M, A10-4655M, and A6-4455M are better at their respective TDPs than anything Intel has to offer--even if you ignore the price tag entirely.  That probably means AMD can charge more for a laptop Trinity than a desktop one.  So AMD will presumably want to take every Trinity die that can go in a laptop and put it in a laptop, at least until they have so many that laptop vendors aren't willing to buy them all.

Furthermore, AMD doesn't have anywhere near the manufacturing capacity that Intel does.  If AMD suddenly has a good enough product to justify doubling their market share, they can't just produce twice as many chips to meet demand.  So they have to prioritize, and laptop Trinity gets priority over desktop Trinity.  There's no sense in launching desktop Trinity until you've got enough chips to meet the demand for both desktops and laptops.

There are, however, some dies that don't meet the laptop specs because they use too much power, but would be fine in a desktop, where much higher power consumption isn't a problem.  If you only have a handful of dies that you need to get rid of that way, then you don't do a big global launch and sell them to everyone who will buy one.  You'll run out and get reamed for a soft launch.  Rather, you only sell them in selected markets.

It sounds like AMD is going to go the OEM market for the initial Trinity desktops, which makes sense.  When the only dies that are going in desktops are the bad ones that can't meet laptop specs, you don't want that to be the ones you send to tech sites for reviews.  You wait until you've got enough that you can put good dies in desktops, too, and then you do your retail launch, and send out the good dies with higher clock speeds as the review samples.

Not to mention Windows 8 releases around the same time as this delay.  It makes a bit more sense to pair the Trinity APUs with Windows 8 then Windows 7.  However, it is quite surprising OEMs want to desperately use AMD chips in their desktops.