What OS does the blackberry Curve 8900 come with? and what is the best OS?
The OS that comes on the 8900 depends on the carrier you got the phone from, each carrier has there own version. The best OS version is usually the one at the top of the forum(250). Many users have tried it and have posted there findings.
Like zwood said... the OS depends on the provider... I believe AT&T released .250 on their 8900... so until they come out with an Officially released version of OS 5.0 and it is stable, I would say any OS version of .206 and above should be very good.