I purchased a 16g 3gs about 2 weeks ago (I installed about 15 apps, it s not jailbroken). I am thinking about upgrading to 3.1. But I'm looking for some advice... Is there an advantage to making the upgrade (any new features or improvements)? Are the problems a prevalent as they seem to be when reading these forums? Will Apple release a new version in the next few months? Thanks for your help.