This might be a task way to huge for the moment but nevertheless I want to open this issue for discussions sake.
I played around with this module and noticed that I can translate polls created with pollfield. However translations are separate nodes and therefore it seems that the translated poll is handled as a new one. Even if I have voted on my english poll I can vote again on the german translation. The correct behaviour from a practical standpoint would be that answer one in the original node and answer one in the translated node are handled the same. I should only be able to vote once and a vote vor answer one should count for all enabled languages.
I suspect this would require some major structural changes but I am by no means a coder.