what dictates os update?

Go under Menu > Settings > About Phone > Software. Hit "Check for Update" and, if it's available for your phone, you can start the download of the software update.

 

Sometimes Verizon rolls out updates in stages instead of making it available to every one at once. You may just have to wait for their servers to send it to you, but in the mean time you can still try to get it manually as often as you feel like checking. If you still don't get it after a few more days, stop by a Verizon store and see if they can help you out.

I hope that helps better!

 

yeah they release the updates in batches. Its simply too much info to xfer to every single inc owner at the same time. They do it in batches to make sure the network doesn't get overloaded. Keep checking daily, you should get it soon. It seems like they do a new batch every monday?? But rest assured, you will get GB. Grats to the inc guys for finally getting in on the GB goodness..