The popular SemiTether jailbreak was updated to v0.9.1 this morning, and it’s quite the update.

Working with Saurik, the team was able to fully incorporate the new mobile substrate, which allowed them to get rid of the daemon patching and restarting.

Mobile substrate now does all of the heavy lifting when it comes to the SemiTether. There’s even an option to patch Safari to work in non-jailbreak mode now.

Perhaps most importantly, the new version of SemiTether will protect your iOS 5 Notification Center plugins…

Along with that much needed feature, the team also says that they are looking into patching Mail, and working with the developers of MyWi and AppSync.

Per BigBoss here are is the summary of changes:

1) Much more stable with new mobile substrate
2) Can patch safari so it works in the non-jailbreak reboot mode
3) App to monitor the status of your semitether and reapply. Check after Cydia installs.

The team states that this update will certainly address the “flakiness” of the previous versions of SemiTether, but to keep in mind that this is still a beta package, and a complete rewrite of mobile substrate.

If you haven’t seen the video that we created that shows how to SemiTether jailbreak your device, then check it out below:

Remember, the source for the SemiTether package is as follows: http://thebigboss.org/semitether

Have you used SemiTether? What do you think about it?

[BigBoss]