When will Czech be available on the iphone? I keep getting an error when I log into my app (vs the website) that tells me Czech isn't supported and pick another language. I can do my lessons on the website though (although I am currently stuck due to the issue of the submit button graying out and not letting me submit answers :( which stinks). I know it's in Beta, but shouldn't we be able to use it on our mobiles while it is? Thanks!