Will jailbreaking allow me to run apps that require iOS > 4.2.1? I have an iPod Touch (2nd gen), which can't update past iOS 4.2.1. I can't download many apps anymore, so I was wondering if jailbreaking it would allow me to download the things I want? I don't even mind actually paying for some stuff, it just won't allow me to download it says I need the iOS 4.3 which I can't even upgrade to.
No - we have several related questions, the best phrasing of this problem is here:

How can I make an app think it&#39;s running on iOS 5?

The newer software has code the app needs to run, so faking apps out still leaves them crashing when they call the code that only exists in iOS 5 to run.