Dev team today uploaded a video where they’ve showed jailbroken iPod Touch 4G, This is good news those of you who bought another recent device after the jailbreakme.com exploit was closed, have probably heard about a brand new exploit called SHAtter. The exploit (and payload) was developed by @pod2g a few months after @p0sixninja of the Chronic Dev Team discovered the crash. Devteam also updated in their blog that chronic devteam is working hard on greenp0ison.
Here is the demo video of jailbroken iPod Touch 4G
The iPhone Help
The iPhone Help