jailbreak, or wait for 4.3

I want to jailbreak my ipod touch 4.2.1, but there's gonna be an upgrade for 4.3 in a couple of weeks. If I jailbreak now, will i have to jailbreak it AGAIN for 4.3?
Edit:
For the Wait option, ignore the 'you' part. I accidentally hit enter before i could erase it
Edit:
For the Wait option, ignore the 'you' part. I accidentally hit enter before i could erase it

This discussion has been closed.
Comments
example:better typing system, faster speed, you don't need to press the home button to go back to the menu etc
Send and Receive Data using your own Server Tutorial! | Vote for A Long Way Home on Steam Greenlight! | Ten Years Left