68K works on my iPhone 2G 16GB. I'm not sure if you mean 1G or 2G because the 1G came in 4GB and 8GB while the 2G came in 8GB and 16GB.
At any rate, before we keep saying that the 68k solution provides "universal, no warning" function, I'd like to hear someone with a "1G 4GB" or a "1G 8GB" attest to its warningless function. If someone can do that, I'll keep at it, but for now, I don't think that 68k is a "universal solution."
(Caveat for clarity again, 68k LOD works, but pops up warning for me.)