[boost] [gsoc] interest check for BigDecimal class

Hi, I am a student applying for GSoC 2009. I was always interested in a BigInteger class for c++ like the one provided by JAVA.i learnt that it was implemented in a previous year's GSoC. But i could not find it in the boost package i downloaded(i beg your pardon if i am wrong). Please let me know if there is scope to work on that. One more feature missing in boost is a BigDecimal class.Would it be good idea to implement the BigDecimal class with all their functionalities -overloading all arithmetic,assignement & comparison operators , functions for other basic operations. bye kannan