Now that iPhone 4 has been launched in US, and in some European
countries, with [You must be registered and logged in to see this link.] to follow in July and August. What
everyone is obviously waiting for is to [You must be registered and logged in to see this link.] and unlock the [You must be registered and logged in to see this link.]. Since iPhone 4 comes unlocked in almost
all countries except for United States, what everyone really wants is a [You must be registered and logged in to see this link.], which requires a [You must be registered and logged in to see this link.] exploit as Apple has already patched all the [You must be registered and logged in to see this link.] in the most [You must be registered and logged in to see this link.], including the one used by [You must be registered and logged in to see this link.].

iPhone 4 Jailbreak


There has been lots of discussions on this in the community. Some are
saying that jailbreak could be out as early as this weekend, some are
pointing for a July release. Geohot was in France this week for “Nuit Du
Hack” [You must be registered and logged in to see this link.] where he talked about a new
exploit called [You must be registered and logged in to see this link.] which can jailbreak and unlock all
iPhones for life. While he definitely has exploits which can [You must be registered and logged in to see this link.] or [You must be registered and logged in to see this link.]
iPhone 4, and [You must be registered and logged in to see this link.] (new bootrom), [You must be registered and logged in to see this link.] (MC models), iPod touch 3G, but the
problem is that he doesn’t have any plans to release them soon.
According to his [You must be registered and logged in to see this link.]:

In Berlin where there are no [color:e9b0=#0000FF ! important][color:e9b0=#0000FF ! important]Apple [color:e9b0=#0000FF ! important]stores[You must be registered and logged in to see this image.]
. USA in world cup! No plans for new
jailbreak. Stop asking.

Another iPhone [You must be registered and logged in to see this link.], who is behind [You must be registered and logged in to see this link.]
to have a tethered exploit which he is working on. But again, no plans
on when he is going to release it to public.

the bootrom exploit I and geohot have is a tethered
exploit, but there’s another untethered exploit, but not in bootrom so
it can be patched

The team which is probably closest in getting a jailbreak out for us
is The iPhone Dev Team. What I believe is that they have a new
exploit, which they will release in a form of tool in the upcoming
weeks.

iPhone 4 Unlock


[You must be registered and logged in to see this link.] for iPhone
4 is entirely a different story altogether. iPhone Dev Team
released [You must be registered and logged in to see this link.] this past week which can [You must be registered and logged in to see this link.] all [You must be registered and logged in to see this link.], including the newest [You must be registered and logged in to see this link.] on all iPhones (except iPhone 4). Before [You must be registered and logged in to see this link.] was released, it was initially [You must be registered and logged in to see this link.] that this version of ultrasn0w will also
be able to unlock iPhone 4. But now according to this report from [You must be registered and logged in to see this link.], iPhone 4 unlock will require
complete rewrite of ultrasn0w software because of the new baseband OS in
iPhone 4.

The DevTeam and others have been checking through the
iPhone 4, and have noticed the baseband runs a completely different OS
than on previous models. The iPhone 3G and 3G[S] both ran Nucleus OS on
the PMB8878 baseband [You must be registered and logged in to see this link.] (aka XGold 608), where the iPhone 2G
ran the PMB8876 (aka S-Gold 2). iPhone 4 uses the PMB9800, or X-Gold 618
– running a separate OS – ThreadX, an RTOS by ExpressLogic.

So what this means is that an unlock for iPhone 4 wont be out anytime
soon. So if you are an International user, you are good to go with [You must be registered and logged in to see this link.] of iPhone 4. US iPhone 4 users
will have to wait for long before they can use this device on carriers
other than AT&T.
If you have any more info regarding iPhone 4 unlock and jailbreak,
let us know about it in the comments section below.