J2ME I have not worked with. Maybe you meant BREW?

I have not attemped to do any complex math yet on a BREW phone.  

There is some info here though:  (this link is a great forum for BREW info btw&#33

http://brewforums.qualcomm.com/showthr....math%2A

I pretty much code the same.  I do use #defines more and keep my classes a bit simpler though.  (I stay away from complex class hierarchies in BREW, I don't think I've ever even subclassed anything yet)

There is no reason not to use the C++ features, the CPU's aren't bad, it's the screen updates that will kill you!  (just adding a clear screen before a blit can drop FPS by 10%.. &#33