Developer Virtuous Flame, one of the creators of the PRO Custom Firmware (and still the main coder), announced a few hours ago on his blog that he his working on a 6.60 Version of Pro CFW.
This means he probably already reversed and integrated the 6.60 Kernel exploit from the 6.60 downgrader, which is insane given that the downgrader itself was released less than a day ago.
According to his blog post, 6.60 will support all known types of motherboards (including, in theory, the upcoming PSP Street) and will work more or less like 6.39 Pro CFW.
Does VF ever sleep? It seems the days we were “afraid” of an OFW update are long gone for the PSP, let’s now patiently wait for this update