A recent tweet from @cpich3g claims the dev team has upgraded from firmware 3.0 to 3.1. It looks like they were on a jailbroken 3.0 and upgraded to 3.1 without having to rejailbreak. We’ll know more soon once we hear officially from the dev team. We’ll keep you updated once a tool is released. Here’s a screenshot of the tweet and the images @cpich3g posted in the tweet.