Hoi,
I blogged about using the mobile phone for the Indian languages. What I learned is that some languages need to invest some time in order to get the mobile interface to work for them. Please check out to what extend your language is supported. ( xx.m.wikipedia.org where xx is your language code).
Thanks,
      GerardM

http://ultimategerardm.blogspot.com/2011/02/supporting-mobile-phones-in-india.html