An image speaks more than thousand words:
"white" version of PS3break you have a ATMEL chip that can be upgraded with FLIP and without any troubles or any additional soldering work (thank God!).
"pink" version of PS3break you have a PIC micro controller with a FAKE upgrade button and it can't be upgraded (yet or not) as easy as ATMEL's version, probably needs soldering work. Bottom line: you can't update your PIC at the moment, no matter what resellers or manufacturer are saying!
NOTE : The White version of PS3Break are totally sold out , do NOT buy PS3Break anymore .
Obviously it is not a ATMEL chip , it can't be upgrade either .
The chip is AVR at90usb162 , yep , It can be upgraded.
There is a new version of PS3Yes , I still don't know what chip it used , I am sure it belongs to AVR , which can be upgraded for sure .
I don't have a P3Free personally , but there is a section on PSX-SCENE sponsored by P3Free team on which you'll get the info that you can't update P3Free via USB.
At least you have to purchase a soldering kit and pic programmer for the update .
If anyone can provide the info of the original PS3KEY OR PSJAIBREAK , it would be appreciated.
This article is not fully completed, I'll update it when I got more info .
Overall : PS3YES is the best choice if you need a plug and play solution .
Where to buy PS3Yes : http://www.lightake.com/detail.do/sku.32477