Concurrent iOS Deployments I would have thought this would be an easy Google search, but I haven't found anything. 

I have inherited an existing iPhone app which is currently deployed to the app store (V1.0). I am about to do a bug fix release, V1.1. 

I understand that this will take Apple 'time' (a week or two?) to approve. 

My question is, while V1.1 is still awaiting approval or rejection, am I allowed to submit V1.2 into a queue? 1.3? Is there a limit? 

Thanks for your help!!
Yes, you can submit multiple version to iTunesConnect.  I often create my next 1 or 2 version 'placeholders' in iTC.  Just don't submit the placeholder versions for approval.  

Your challenge, if you decide to do this, will be to keep all your versions and source code intact. Because of that, I don't upload the app package until I'm ready to have Apple review it.