Here is good news for all new iphone 4 owners, Musclenerd and PlanetBeing who both are members of famous iPhone Dev Team has just tweeted about iphone 4 unlocked. Below are their tweets about the same.
PlanetBeing - Looks like I now have an unlocked iPhone 4. MuscleNerd - My soft-unlocked iPhone 4 (in Canada). I’ll have video in a couple of hours once I can top-up the SIM. http://twitpic.com/24ycdv MuscleNerd - Congrats to @planetbeing for first ever soft-unlocked iPhone4 http://is.gd/dqwvv (now to streamline it!) MuscleNerd - We think we have 3 different ways to unlock once inside BB (the 3rd way was first to fully work for @planetbeing !)
Below is the snapshot they posted of iphone 4 running cydia after jailbreaked and unlocked