to iphone or not to iphone

Well purple blackberry, we've had a good run. You lasted me numerous text messages, important calls and embarassing tweets, but I think it's time we break up. 

Now the question is, do I really want an iphone? Can I really deal with touch screen, ALL the TIME? 

And then, most importantly, can I find a case that I like enough to justify buying the actual phone. 

I shop for phones like a girl, I swear.