Rare language signs/letters in texts

I have one suggestion. I'm from Poland, and in my language there are signs like ł,ą,ę,ż,ź. When I send a text message airdroid should change those letters to their simpler versions, like ł->l, ą->a, ż->z ...if not the text message (consisting of 160 signs) is sent not as one message but two or more. Because those Polish signs "cost" more than one English sign. I know its not some big issue but I really like your app, and it would make using it even more enjoyable.