I've followed GBPPR for a (+/-) decade' and always found the designs useful, wither as food for thought for in an applications sense, or using the functional blocks for other projects. For instance, the 'parallel port bug' using a 50MHz VCO is pretty clever in a simple, non-attributable way that has application in most (any?) low-frequency digital output that one wishes to observe from afar. You can use a different VCO, maybe with a voltage buffer, but the Theory of Operation is sound.
The designs are dated, but can be reproduced with New Old Stock (NOS) components from eBay. Also, a design from NOS looks dated, but still delivers the solution, 'an unconventional use of technology for a *particular* purpose.'
It seems that the Maker/Hacker communities are focused on the latest Small Board Computer (which is cool), but maybe something small and dated is unobtrusive and low-power. Not too mention modern IC's are heavily integrated and maybe that's just too much research on the chip, and the supporting design/hardware for the chip (add an i2c bus and MCU for ADC control), when I just want to ADC as simply as possible.
Also, the programming gap. PIC's and what not.
What's the issue with the white noise generator?