is there some tool that permits us to open two maps at once? For example to compare the different triggers or the edit in the Data.
Would be awesome if you knew of such a tool.
/btw. do we need to buy sc2 to get the GE when it's released?
You can have several maps open at once and easily swap between them through 'Window' menu, just like in WE. Also, to see triggers from 2 maps at the same time I usually take a screenshot of the first and paste it in a quick program like Irfanview and place it next to the trigger editor with the other map's triggers.
You don't need to have 2 accounts to get the different languages available.
Maybe it'll work on your computer but on mine not, I downloaded english after french and installed it on another Windows on another disk on same computer, and then started it from the first Windows to publish maps as french can't do it, and when one is started, if you try to start the other, it does nothing.