Is there a platform I can use that takes all the technologies mentioned in the title and packages a native application for the most popular mobile Operating Systems (Android, iOS, RIM, WP7 etc)?
Thank you.
Depending on what you want to do, yes - PhoneGap and Titanium Appcelerator are particularly suitable for this.
Someone I follow on Twitter did a nice write of comparing Appcelerator VS. PhoneGap VS. Adobe Air: http://savagelook.com/blog/portfolio/appcelerator-vs-phonegap-vs-adobe-air
I've only used PhoneGap and dabbled briefly with Appcelerator. I found that PhoneGap used to be better, but that may no longer be the case it seems.