No idea what the next version fixes or adds. I'm sure we'll find out soon enough.
As for why people always look for the next version - well I guess like me I hope it will enable some sort of functionality that I don't currently have. i.e. the software upgrade to 20 enabled MP3's on my pre-sept car. Who knows may with the next upgrade I'll be able to input and address into NAV down to street level using a voice command. Currently I can only issue voice commands for address details down to country level in my car. It does not support city or streets voice input yet. Oh and maybe with the next version I'll be have the option to enable acoustic confirmation when locking or unlocking the car and who knows what else :-)