Thank you for your constructive comments! Karasu, I agree that writing our romanji is faster, but for reading it doesn't help. >_< Staticuniverse, badges would indeed be nice. Casimodo, I think I'll leave the chinese version to someone else. :o) Sqamble777, as far as I know 'wo' is pronounced as 'o' and romanized both ways to mark the difference between the two 'o's. The 'h' in 'hu' (or 'fu') is a gentle one.
Zyjil, thank you! Kivs, if it is too overwhelming at first, select 'vowels' instead of 'basic set', select '3 choices' instead of '5 choices', or use the 'cheating' method as Waterstorm described. Such cheating is allowed if it helps your learning process. :o)
Rubberband, thanks for the feedback. Those are good ideas, I may do something along those lines when I have the time for a bigger project.
Smirker, that's why it's in the tutorial section. :o)