Apple has already started working on next major iOS update i.e iOS 4.1. About two weeks back the first iOS 4.1 Beta was made available to iPhone developers and today we have second beta of iOS 4.1. Those users who have updated to iOS 4.1 Beta can jailbreak iPhone 3GS 4.1 & iPod Touch 2G 4.1 with Redsn0w 0.9.5 Beta 5.
However if you have accidentally updated to iOS 4.1 Beta 2 and lost your jailbreak then here is still your hope, A recent tweet from Musclenerd member of iPhone dev team suggest that Redsn0w 0.9.5 Beta 5 can jailbreak iPhone3G or iPod Touch 2G (non-MC) 4.1 Beta 2 but it cannot hacktivate your iPhone.
You may experience network issue after jailbreaking iOS 4.1 Beta 2 with Redsn0w and you may need to rely on afc2 access (such as FunBox-like file browser programs) to manipulate your filesystem and this is strictly for power users.
Follow our below guides to jailbreak iPhone 3G & iPod Touch 2G 4.1 Beta 2 with Redsn0w 0.9.5 Beta 5.
iOS 4.1 final has been released & iPhone dev team has also updated redsn0w to support ioS 4.1 on iPhone 3G & iPod Touch 2G non-mc as well as mc model (tethered jailbreak).
iOS 4.2 Beta is released to developers