Based on them, ProgSkeet appears to utilize an Actel A3P125 IC (datasheet HERE) which is common among modchips due to its security, and offers enough address lines for at least 2 (if not more) NANDs with 16 general purpose lines and boasts 125,000 system gates with 133 maximum user I/O lines. It also offers JTAG pads, presumably used for programming the device.
Upon completion, ProgSkeet will allow users to downgrade and jailbreak their PS3 similar to the Infectus Mod along with backing up and reflashing the console's memory.
More details will be posted as they become available on the ProgSkeet project, with a video now posted below and a ProgSkeet Review for those interested.
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Dual boot using a switch (led on = secondary nand/nor, led off = primary nand/nor).
Supports both solderless nand and nor together. This should fix the write issues people were getting with 1.2.
ProgSkeet 1.2/1.21 BITSTREAM_12_130401_1824 (via forum.dayton360mods.com/showthread.php?947-Progskeet-1-2-1-21-bitstream-Mar-30-2013&p=2850#post2850) is the second progskeet v1.2 fix NOR bitstream.
ProgSkeet 1.2/1.21 BITSTREAM_12_120402_1730 (via forum.dayton360mods.com/showthread.php?947-Progskeet-1-2-1-21-bitstream-Mar-30-2013&p=2850#post2850) is another updated bitstream, again to fix the NOR read / write issues on the 1.2 / 1.21 progskeet.
+ Added metastability to the DQ ports to filter out noise and glitches
+ Reduced timeout from 1.3ms down to 320ns per word
+ Added timeout for reads/writes (1ms), no more blocking
+ Fixed bug where it would read gpio from data pins rather than from gpio pins
+ Increased metastability of USB (should no longer disconnect)
+ Restored Samsung Q compatibility that was caused by dualboot pin allocation
Finally, from uf6667 (via progskeet.com/forum/viewtopic.php?f=13&t=109417):
[uf6667]: nand and nor
[uf6667]: nor CONFIRMED working perfect
[uf6667]: if someone's eager to test nand, this is the one
In general, how difficult is to pull of one of these ProgSkeet mods? Specifically to one of the old CECH0A launch models? I am familiar with soldering but I'm not sure I would say I'm good at it. This for experienced circuit boarders? I've heard of people sucessfully hacking CECH0A's but I don't if they had to downgrade their FW's beforehand. Anyone have any experience with this particular circumstance?