I will get to adding languages as soon as I get some free time...
Most of you don't realize what a tedious process it is, checking everything in every release. So far myMIUI been flashed (at beta stages) more than 800 times before release; with over 4000 downloads in the last week and only about 8 bugs, the numbers speak for themselves. The last thing I want is to add functionality which will break everything else.
So unless you can contribute to the development process, either with debugging/coding/theming please don't ask for ETAs.
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