is to find your caps lock key and press it. Messages in ALL CAPS are considered shouting in forums like this.

And I think nobody can take this decision for you.

It depends on how much and how soon you need a touch-screen interface to be able to use your phone. Most people I know can do quite well with a phone without such an interface (just using normal keys and a normal menu structure), but you might really need it right now for some reason you don't tell about.

And of course it depends on how much you want to impress your friends with having the latest gadgets. Why not buy a Prada now and an iPhone in June? Give your Prada to your girlfriend then, and everybody is happy.