Just wanted to see if anyone is having issues before I upgrade.
Let me know! 
Iām using 3.4, not 3.4.1, and Iām experiencing no noticeable problems.
Just switch to lion recently with 3.4.1 and did not get any issue for now
And this is with the version of the OS that came out today, 10/12/2011?
Yes. I updated along with iTunes so I could update my phone. I gave it a quick run-through to make sure there were no problems. I could create gameobjects, add scripts, edit variables, etc. without any problem.
im using lion 10.7.2 , no problems at all