jailbreak ipod touch 4.1(MC version) with greenpois0n?
 

hi all,i want to ask if its possible to jailbreak an ipod touch 4.1(MC version) with greenpois0n,right now im on 4.1 but if try to use limera1n or greenpois0n i cant do the job so i was thinking about upgrading to 4.2.1 cause perhaps greenpois0n works better with 4.2.1 then with 4.1?

thanks a lot