PB2 Official site has updated with this:
Disclaimer: the latest firmware of PB2 is only applicable to PB2 dongle [2012.07.02]
PS3break team have noted that there are some debates on clone events. we have to announce that PS3break team is the second team who is capable of releasing the latest firmware to support TB v2.7 after TB2. The latest firmware of PB2 is only applicable to PB2 dongle, it doesn't fully support other similar products, if you continue to upgrade other dongle with PB2 firmware, what happens to you is your responsibility. we will always take the forefront in the ps3 scene, provide the most prompt and safest update service for our customers.
PS: This will be the only thread I participate from now on, I will no longer be participating on ps3hax overall, at least until (and if) some things change.