Spanish hacker Waninkoko has released a modified version of PSGroove that allows us to now install retail PKG on to your jailbroken PS3. We were able to do this before, but it required converting to PKG’s, now all you have to simply do is copy it to your PS3 and install them as you did for debug packages.

You can grab the source and HEX below, of course now we have to wait for many and many ports to be compiled, so post away your compiled links below and I will update the list here. I have not actually had time to personally test this, but try it out and let me (and others) know your results via reply as well.

[Download Waninkoko PSGroove Source]
[Download Waninkoko PSGroove HEX for USB Boards]
[VIA Teknoconsolas]

Port List:

TI-84 Calculator

French site PS3GEN has reported that PS3 Developer RichDevX, is working on a payload, to get the PS3 into Service Mode,here is a translated quote from the source:

As shown in this first image, we can see the red box on the XMB showing that the console actually went into service mode. In this mode, it is possible to run specific software, including one allowing the domwgrade (the opposite of update, ie back to a previous firmware). Who says so says downgrade opportunity to go 3.15 for the benefit of new and more otheros hack with PSGroove.

Payload through this, it is also possible to run each time you start the console, loading a file. Self from a USB key as explained above. This could allow the hack using only one time a dongle or other, then your USB stick could complete the task alone. Advances in the underground world push the limits even further, watch this.

Source

Thanks to dondolo for the tip.

EDIT
So it appears we have more scene lies and rubbish:
In reply to Pockets69 Mathieulh wrote

@Pockets_69 I don’t even think this payload is destined for a public release, none of us issued any statement regarding those. People just happened to stumble upon those pictures from Rich’s twitpic folder and made a whole story around it.