I am pretty sure no research because im not completely sure...
yes the japenese version is compatible with the English version.
It does not have an engilish version, but it will have an English version soon.
Probably, its just like trading a Japanese Pokemon to a English version, idk if the Pokemon name will be translated to English but you can trade i guess
no
Luckily for you bilinguals (I am too :]) yes
There is no English Version yet. It will come out late next year.
Pokémon Black 2 Version and White 2 Version will be availiable for English in September.
yes
The release date for the English version Pokemon Platinum is March 22, 2009, but it is already out at Gamestop (I think) for $40.00.
The Japanese version is Isshu and the English version is Unova.
p8m2 9df 43h7 The above code does not work. It was tested on an English version of Pokemon Ranger and it failed. The American code does not work in the English version. Aparantly, the code for the English version of Pokemon Ranger is: Mg35 Cpb8 4FW8 (Case sensitive). As I do not have that particular version, I do not know for sure. But try it - it may just work.
no