> Linux is currently the only platform Adobe is supporting 64-bit on.
And Linux users care about that because of only one reason - that 64-bit distributions forces all standard applications in repositories to be 64-bit. I personally think it would be better if even 64-bit Ubuntu shipped 32-bit Firefox, because there is no real gain and there are problems (e.g. in Flash). Please note that there isn't even any official 64-bit build of Firefox Windows and Mac OS X and nobody cares, 32-bit version works.
If 64-bit Ubuntu worked with 32-bit Firefox, we would also not care about slow development of 64-bit Flash...